Tuna Squares

Prep: 15 min Cook: 30 min Serves: 9 Cuisine: American

Tuna Squares are savory, cheesy snack bars with a crisp bisquick crust and flavorful tuna filling, perfect for lunch, potlucks, or casual gatherings.

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Ingredients

  • 2 cups Bisquick
  • 1/2 cup water
  • 2 cans tuna (6 1/2 oz. each)
  • 1 1/2 cups shredded Swiss cheese
  • 1/2 cup chopped celery
  • 1/3 cup chopped green onions
  • 1/3 cup mayonnaise
  • 1/2 teaspoon Worcestershire sauce
  • 1/4 teaspoon salt
  • 1/8 teaspoon pepper

Instructions

  1. Preheat oven to 375°F.
  2. Grease a 9 x 9-inch square pan.
  3. Mix Bisquick and water until a soft dough forms.
  4. Pat the dough evenly into the prepared pan.
  5. In a separate bowl, combine tuna, shredded Swiss cheese, chopped celery, chopped green onions, mayonnaise, Worcestershire sauce, salt, and pepper.
  6. Spread the tuna mixture evenly over the dough in the pan.
  7. Sprinkle with paprika if desired.
  8. Bake until edges are light brown, about 30 minutes.

Tips & Substitutions

For a creamier texture, consider adding a tablespoon of sour cream to the tuna mixture. If you don't have Swiss cheese, Gruyère or mozzarella can be good substitutes. To enhance the flavor, mix in a teaspoon of Dijon mustard or fresh herbs like dill or parsley. This recipe also lends itself well to variations, so feel free to experiment with different seafood options like crab or shrimp, similar to Hot Seafood Pie 'One-Dish' Dinner.

Serving Suggestions

Serve the tuna squares warm or at room temperature as a delightful appetizer or main dish. They pair beautifully with a fresh green salad or steamed vegetables for a complete meal. For an elevated touch, serve with a side of tartar sauce or a squeeze of lemon. These squares also make a great addition to a picnic or potluck spread, alongside other American recipes.

Storage & Reheating

Store any leftovers in an airtight container in the refrigerator for up to 3 days. To reheat, place in a preheated oven at 350°F for about 15-20 minutes or until heated through. You can also microwave individual portions for a quick meal, but the oven method will keep the crust crispier.

Nutrition & Diet Analysis (per serving)

Each serving of Tuna Squares contains roughly 122 calories, with 13g protein, 8g carbohydrates, and 5g fat. It is an excellent source of vitamin C (31% of the Daily Value) and protein (27% of the Daily Value), and a good source of calcium and iron. It also contributes 3g of dietary fiber toward your daily target.

122 kcal 6% DV
Protein Fat Carbs

Macronutrients

Protein 13.3g 27% DV
Total Fat 5g 6% DV
Carbs 7.8g 3% DV
Fiber 2.9g 10% DV
Sugar 2.6g 5% DV

Electrolytes

Sodium 198.8mg 9% DV
Potassium 387.1mg 8% DV
Cholesterol 26.8mg 9% DV

Vitamins & Minerals

Vitamin A 94.2mcg 10% DV
Vitamin C 28.3mg 31% DV
Vitamin D 0.5mcg 2% DV
Calcium 196.1mg 15% DV
Iron 2.1mg 12% DV
Diet fit High-protein Keto-friendly Under 400 cal
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 cooked tuna instead of canned. Just make sure to flake it into small pieces similar to canned tuna. You may need to adjust the seasoning since fresh tuna can have a milder flavor.

How can I make this dish gluten-free?

To make this recipe gluten-free, substitute the Bisquick with a gluten-free baking mix. Ensure that all other ingredients, especially canned tuna and condiments, are certified gluten-free to avoid cross-contamination.

Can I freeze the tuna squares?

Yes, you can freeze the tuna squares before baking. Assemble the dish, cover tightly, and freeze for up to 2 months. When ready to bake, thaw in the refrigerator overnight and then bake as directed. However, the texture may vary slightly after freezing.

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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