Published by Best Fitness Routine. Editorial standards · Report a correction. Educational guidance; no individual clinical review is claimed unless a qualified reviewer is named.
About This Healthy Recipe
Plain Greek yogurt holds flaked tuna and sweetcorn together in this mayonnaise-free jacket potato. The cool filling sits over a hot, fluffy potato, with spring onions for a mild bite and a simple lettuce-cucumber side. Drain the tuna before weighing so the filling stays spoonable rather than watery.
Tuna is weighed after draining, while corn is weighed frozen before cooking and potatoes are weighed raw with skins. These states match the listed reference records.
The recipe has no mayonnaise, but Greek yogurt still contains milk. Mayonnaise-free does not mean dairy-free or suitable for every allergy. For another preparation, see Greek Yogurt Tuna Salad Stuffed Bell Peppers with Cucumber.
Why Readers May Like It
- 1Measured portions, a clear filling method and practical doneness checks.
- 2Clear dry, cooked and drained ingredient weights.
- 3Four measured meal portions with potatoes, filling and listed sides included.
Recipe Summary and Estimated Nutrition
Nutrition is estimated from the listed ingredient weights and the specific USDA records or manufacturer references linked below. Weights labeled dry, raw, cooked or drained must be matched to that state.
4 servings
One serving is one quarter of the base batch. Values are estimates rather than laboratory analysis.
Per one quarter of the base recipe
Per one quarter of the base recipe
Per one quarter of the base recipe
Per one quarter of the base recipe
Brands, drained weights, substitutions and final serving sizes can change these values.
Ingredient-by-Ingredient Nutrition Breakdown
Gram weights are the calculation basis; household measures are approximate. The table includes all listed oil, sauce and toppings. All listed potato skins, filling, measured oil, sauces and sides are included. Baking changes water weight; weigh potatoes raw, before cooking.
| Ingredient | Amount used | Weight | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|---|---|
| Baking potatoes, raw flesh and skin, scrubbed and dried | 4 potatoes, about 300 g / 10 1/2 oz each before baking | 1200 g | 924 kcal | 24.6 g | 209.9 g | 1.1 g |
| Light tuna canned in water, drained solids | about 3–4 standard cans; weigh after draining | 400 g | 344 kcal | 77.8 g | 0 g | 3.8 g |
| Frozen sweetcorn kernels, weighed frozen before cooking | about 1 1/2 cups | 240 g | 211 kcal | 7.2 g | 49.7 g | 1.9 g |
| Plain nonfat Greek yogurt, chilled | about 1 cup | 240 g | 142 kcal | 24.5 g | 8.6 g | 0.9 g |
| Spring onions, raw, trimmed and thinly sliced | about 3 | 40 g | 13 kcal | 0.7 g | 2.9 g | 0.1 g |
| Lemon juice, raw: 25 g filling, 15 g side | about 2 tablespoons plus 2 teaspoons | 40 g | 9 kcal | 0.1 g | 2.8 g | 0.1 g |
| Fresh parsley, raw, chopped | about 1/4 cup loosely packed | 12 g | 4 kcal | 0.4 g | 0.8 g | 0.1 g |
| Olive oil: 8 g skins, 4 g salad | about 2 1/2 teaspoons total | 12 g | 106 kcal | 0 g | 0 g | 12 g |
| Ground black pepper | about 1/2 teaspoon | 1 g | 3 kcal | 0.1 g | 0.6 g | 0 g |
| Table salt for the salad | about 1/6 teaspoon | 1 g | 0 kcal | 0 g | 0 g | 0 g |
| Romaine lettuce leaves, raw, washed, core removed and dried | about 3 1/2 cups shredded | 160 g | 27 kcal | 2 g | 5.3 g | 0.5 g |
| Cucumber with peel, raw, sliced | about 1 3/4 cups | 240 g | 36 kcal | 1.6 g | 8.7 g | 0.3 g |
| Full recipe estimate | 4 servings | — | 1819 kcal | 139 g | 289.3 g | 20.8 g |
How This Nutrition Estimate Was Prepared
- Match each listed ingredient to its linked food record or stated label reference.
- Multiply the per-100-g values by the listed gram weight and add the unrounded ingredient values.
- Divide the full calculation by four servings, then round for the cards.
- Recalculate if you change the ingredient brand, amount or serving yield.
Ingredient cells are rounded independently. The footer sums displayed cells; per-serving cards use the unrounded calculation, so small rounding differences are expected. Final cooking yield and brands can change the estimate.
Ingredients
Measured ingredients
Step-by-Step Preparation
As an Amazon Associate we earn from qualifying purchases. Equipment links are paid affiliate links; use suitable tools you already own.
Equipment
- Rimmed baking sheet (paid link)
- Digital kitchen scale (paid link)
- Fine mesh strainer (paid link)
- Mixing bowls (paid link)
- Chef knife and board (paid link)
- Oven gloves (paid link)
- Lidded saucepan (paid link)
Before You Start
Tuna is weighed after draining, while corn is weighed frozen before cooking and potatoes are weighed raw with skins. These states match the listed reference records.
Allow about 105 minutes for preparation, preheating, baking the potatoes and preparing their filling. Some tasks overlap; doneness checks take priority over the clock. Measure the listed oil before cooking and keep the sides within the stated four portions. Use the raw, dry, cooked or drained state specified for each ingredient.
Heat the oven and weigh the potatoes
10–15 minutes including oven heatingHeat the oven to 400°F / 200°C conventional, or 350°F / 180°C fan. Scrub and dry four similar baking potatoes, weighing 1,200 g total with their skins. Prick each several times. Rub the skins with 8 g olive oil and place on a rimmed sheet without foil. A digital kitchen scale (paid link) helps keep the measured quantities consistent.
Bake while preparing the filling
65–80 minutes; preparation overlapsBake the potatoes for 65–80 minutes, turning after about 40 minutes. Leave gaps so hot air reaches each skin. Prepare the corn and chilled filling during this interval, keeping them refrigerated rather than leaving the bowl (paid link) beside the oven. Potatoes are ready only when their centers are completely tender.
Cook and promptly chill the corn
5–8 minutes plus refrigeration during bakingCook the weighed frozen corn according to its packet, using a microwave-safe bowl or saucepan; do not assume frozen kernels are ready to eat. Drain any cooking water. Spread the kernels in a clean shallow container and refrigerate promptly so they cool before joining the yogurt. Do not leave them on the counter until cold.
Drain and flake the tuna
8 minutesDrain the tuna in a fine strainer and weigh 400 g of drained solids. Flake into a clean bowl, checking for any hard fragments. Wash and dry the lettuce, slice the cucumber and spring onions, and chop the parsley. Keep the tuna and prepared vegetables chilled while the corn cools.
Mix the no-mayo topping
4 minutes once corn is chilledWhen the corn is chilled, fold it into the tuna with the Greek yogurt, spring onions, parsley, 25 g lemon juice and black pepper. Reserve a few of the measured spring-onion slices for the top if desired. Cover and refrigerate until the potatoes are ready; the mixture is not baked.
Dress the measured side
3 minutesToss the lettuce and cucumber with the remaining 15 g lemon juice, 4 g olive oil and 1 g salt just before serving. Keep any portions not being served undressed and refrigerated. The small side is included in the nutrition estimate, along with all the tuna topping and oil.
Split the baked potatoes
3 minutesTest each potato with a narrow knife and continue baking any that is firm. Using oven gloves, make a deep cross in each tender potato and open gently with forks. Fluff the inside without discarding flesh. Steam escapes quickly, so keep your hands and face back from the opening.
Assemble and serve immediately
2 minutesGive each person one hot potato and one quarter of the chilled tuna mixture. Add one quarter of the lettuce-cucumber side and its dressing. Serve promptly rather than keeping the assembled hot-and-cold potato for later; for leftovers, separate and refrigerate the components within the stated cooling limits.
How to Know It Is Ready
Each potato must be tender through the thickest center. Cook frozen corn as its packet directs, then chill promptly; keep the tuna-yogurt topping at 40°F / 4°C or below until assembly.
Fluffy hot potato under a cool, lightly tangy tuna-corn topping, with crisp lettuce and cucumber.
One baked potato and one quarter of the filling, listed sides, sauce and measured oil.
What This Meal Provides and What to Consider
Meal Balance
- The measured batch supplies about 34.7 g protein per serving.
- Potatoes, filling, listed accompaniments and measured cooking oil are included in the complete portion.
Things to Consider
- Fish in the tuna and milk in the Greek yogurt. Check labels and cross-contact information; removing mayonnaise does not make this an allergen-free meal.
- Energy, sodium and saturated fat still depend on ingredients and portion size. This meal does not guarantee a particular fitness or health result.
Who May Enjoy This Recipe?
Baked potato meal planning
Home cooks looking for a measured seafood lunch or dinner.
Home cooking
The recipe has no mayonnaise, but Greek yogurt still contains milk. Mayonnaise-free does not mean dairy-free or suitable for every allergy.
Measured portions
People who want to understand how ingredient weights relate to a four-serving batch.
How to Adjust the Meal
Smaller appetite
Serve a smaller portion and save the rest safely. Recalculate nutrition for the portion you actually eat.
Larger appetite
Choose an appropriate larger portion or accompaniment and include those ingredients in the meal calculation.
Protein adjustments
If changing the main filling, potato size or side, use its product label and recalculate. The amount can also change texture and cooking requirements.
Substitutions, Dietary Notes, and Allergens
Practical Substitutions
- Chopped chives can replace the spring onion by taste; changing amounts changes nutrition slightly. A plain unsweetened alternative to yogurt needs its own nutrition calculation and allergy check. Salmon is not a like-for-like replacement for the tuna source used here.
- A different potato size or filling changes cooking time, portion size and nutrition. Adjust the method and recalculate when substituting.
Allergen Information
Fish in the tuna and milk in the Greek yogurt. Check labels and cross-contact information; removing mayonnaise does not make this an allergen-free meal.
Check packaged ingredient labels for the allergens relevant to you. A substitution changes both the recipe and the calculation.
Storage and Meal Preparation
Refrigerate perishable food within 2 hours, or within 1 hour when surroundings exceed 90°F / 32°C. Use shallow containers and a refrigerator at 40°F / 4°C or colder. Use safely handled cooked leftovers within 3–4 days; reheat hot leftovers to 165°F / 74°C.
Keeping This Baked Potato Meal
This method bakes potatoes without foil. Split leftover potatoes to help cooling and put them and cooked filling in shallow containers; refrigerate within 2 hours, or within 1 hour above 90°F / 32°C. Keep at 40°F / 4°C or below and use within 3–4 days of the earliest-cooked component, following an earlier ingredient use-by date. If foil was used, remove it before cooling; do not leave wrapped potatoes on the counter. Keep the tuna-yogurt filling and undressed salad separate and chilled. For best texture use the prepared cold filling within 3 days, or sooner if its ingredient label requires.
Reheating the Meal
Reheat the stored potato alone until its center reaches 165°F / 74°C, checking more than one place. Add the safely stored chilled tuna filling and salad only after reheating. Do not leave the assembled potato out while it gradually cools.
Follow USDA leftovers guidance. For another baked potato and filling combination, browse Cottage Cheese and Spinach Baked Potato.
Frequently Asked Questions
Yes, drain it and follow its label, but the reference here is frozen corn weighed before cooking. Recalculate for the drained canned product, especially if salt or sugar has been added.
This version uses it chilled. If you choose a heated version, keep food handling safe and expect yogurt to become grainy; do not leave the mixture at room temperature while deciding.
Yes, refrigerate it promptly in a covered container at 40°F / 4°C or below. Follow the earliest ingredient use-by date and count the prepared filling within the stated refrigerated storage window.
Use the serving controls to scale gram quantities and serving count. Use additional trays or cook more batches; cooking time does not simply double. Household notes describe the base four-serving recipe.
Nutrition Sources and Recipe Notes
These values are planning estimates, not individualized nutrition advice. Use labels for your exact products when precision is important. The recipe has not been kitchen-tested and the image is a generated illustration of the intended dish.
Nutrition Data Sources
See our Nutrition Calculation Methodology for weights, rounding and substitutions.
Food Safety Reference
Useful Tools for This Recipe
As an Amazon Associate we earn from qualifying purchases. Equipment links are paid affiliate links; use suitable tools you already own.
These tools fit the preparation above. Use suitable equipment you already own, or compare options if you need an item.
Rimmed baking sheet
Holds four spaced potatoes and catches any filling spills.
Compare on Amazon → (paid link)Paid link · opens in a new tabDigital kitchen scale
Checks raw potato weights and divides the complete filling into four portions.
Compare on Amazon → (paid link)Paid link · opens in a new tabFine mesh strainer
Drains cooked beans or canned tuna before their stated weight is measured.
Compare on Amazon → (paid link)Paid link · opens in a new tab
