Tuna-On-Bun

Prep: 10 min Cook: 5 min Serves: 1 Cuisine: American

A quick and satisfying tuna sandwich topped with melted cheese, perfect for a hearty lunch or snack with creamy, savory flavors that suit all ages.

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Ingredients

  • 1 can tuna
  • 1 onion, chopped
  • 1/2 cup cheese
  • 1/4 cup mayonnaise

Instructions

  1. Mix the tuna, chopped onion, cheese, and mayonnaise together in a bowl.
  2. Place the mixture on a bun, then put it in a toaster oven until heated through and the cheese melts.

Tips & Substitutions

For a creamier texture, consider adding a splash of lemon juice or a dollop of Greek yogurt to the tuna mixture. If you prefer a bit of crunch, diced celery or pickles would make excellent additions. You can substitute the tuna with canned chicken or chickpeas for a different flavor profile. Experimenting with different types of cheese, such as pepper jack, can also enhance the taste.

Serving Suggestions

This Tuna-On-Bun pairs beautifully with a side of crispy potato chips or a fresh salad for a complete meal. For a heartier option, serve it alongside soup, such as a classic tomato or a seafood chowder. You can also customize the buns by using whole grain or gluten-free options to cater to dietary preferences.

Storage & Reheating

Store any leftover tuna mixture in an airtight container in the refrigerator for up to 3 days. When ready to eat, you can reheat it in a toaster oven or microwave until warmed through. If the mixture thickens in the fridge, stir in a little extra mayonnaise or yogurt to loosen it before serving.

Nutrition & Diet Analysis (per serving)

Each serving of Tuna-On-Bun contains roughly 3156 calories, with 34g protein, 28g carbohydrates, and 329g fat. It is an excellent source of protein (68% of the Daily Value), calcium (31% of the Daily Value), and iron (20% of the Daily Value), and a good source of potassium and vitamin A. Note that it is relatively high in sodium, at 3000mg per serving (130% of the Daily Value).

3156 kcal 100% DV
Protein Fat Carbs

Macronutrients

Protein 33.9g 68% DV
Total Fat 329.2g 100% DV
Carbs 28.4g 10% DV
Fiber 1.3g 5% DV
Sugar 8.9g 18% DV

Electrolytes

Sodium 3000mg 100% DV
Potassium 471.9mg 10% DV
Cholesterol 61.2mg 20% DV

Vitamins & Minerals

Vitamin A 87.1mcg 10% DV
Vitamin C 1mg 1% DV
Vitamin D 1.3mcg 7% DV
Calcium 402.5mg 31% DV
Iron 3.7mg 20% DV
Diet fit High-protein
Contains Milk Egg Fish

Estimated from ingredients & per-serving nutrition — verify against package labels for allergies or strict diets.

* % Daily Values based on a 2,000 calorie diet (FDA 2020).

Frequently Asked Questions

Can I use fresh tuna instead of canned?

Yes, you can use fresh tuna, but it will require cooking first. Grill or sear the tuna steak, then flake it into the mixture. Adjust the seasoning as needed, since canned tuna is usually salted. This will give your dish a fresher taste and a different texture.

What type of bun works best for this recipe?

A soft hamburger bun or a crusty roll works best for this recipe. You can also try using ciabatta or sourdough for added flavor. If you're looking for a lower-carb option, lettuce wraps or portobello mushrooms can serve as a great substitute for a traditional bun.

Can I make this recipe in advance?

Absolutely! You can prepare the tuna mixture a day ahead and store it in the refrigerator. However, it's best to assemble the sandwiches right before serving to keep the buns from getting soggy. If making the whole dish in advance, consider toasting the buns just before serving.

Nutrition is estimated from USDA FoodData Central ingredient data and may vary with brand, portion and preparation — see our methodology. This information is for general educational purposes only and is not medical or dietary advice (disclaimer).

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