This easy baked tuna shells recipe is built for a busy holiday weekend when you want something hearty, budget-friendly, and dependable without standing over the stove. Using undrained pouches of herb and garlic tuna gives the dish instant seasoning and moisture, while pantry staples turn into a simple casserole-style pasta bake with very little prep. It has the practical feel of a classic Midwestern weeknight supper, but it is just right for a casual Labor Day table too.
Serve these tuna shells with a crisp green salad, buttered green beans, or roasted broccoli to balance the richness of the pasta. Garlic bread or toasted sandwich rolls fit right in if you want to stretch the meal for a crowd, and a cold pasta salad, sliced tomatoes, or fresh fruit makes the plate feel especially good for a late-summer weekend gathering.
4-Ingredient Oven Baked Labor Day Herb Tuna Shells
Servings: 4 to 6
Ingredients
2 pouches herb and garlic tuna, undrained (about 2.6 to 3 ounces each)
8 ounces medium pasta shells, uncooked
1 can condensed cream of mushroom soup (10.5 ounces)
2 cups water
Directions
1. Preheat the oven to 400°F. Lightly grease an 8-by-8-inch or similar small oven-safe baking dish.
2. Add the uncooked shell pasta to the baking dish. Spoon the condensed soup over the pasta, pour in the water, and add the undrained herb and garlic tuna. Stir well so the soup loosens into the water and the tuna is distributed through the pasta.
3. Cover the dish tightly with foil and bake for 30 minutes. Remove the foil, stir carefully, and check that the shells are beginning to soften evenly.
4. Re-cover the dish and bake 10 to 15 minutes more, or until the pasta is tender and most of the liquid has been absorbed.
5. Let the dish stand for 5 minutes before serving so the sauce thickens slightly and coats the shells.
Variations & Tips
Add cheese: If you do not mind moving beyond four ingredients, a small handful of shredded mozzarella, cheddar, or Parmesan on top during the last 10 minutes of baking adds color and a more casserole-like finish.
Use the right dish: A smaller baking dish helps keep the pasta submerged so it cooks evenly. If you use a larger dish, stir once or twice during baking and be ready to add a splash more water if the shells look dry before they are tender.
Swap the soup: Cream of celery or cream of chicken can stand in for cream of mushroom if that is what you have in the pantry. The herb and garlic tuna works well with all three, though cream of mushroom gives the most classic casserole flavor.
Finish with fresh flavor: A little chopped parsley, black pepper, lemon zest, or crushed crackers on top just before serving can make the dish look more polished for a holiday weekend meal without changing its simple pantry-dinner roots.