Creamy Shells with Tuna and Spinach

Source : Directions 1 Preheat Oven To 375f 2 In A Medium Pot Heat Oil Over Medium-high Add Onion And Cook Until Softened About 6 Minutes 3 Add Flour And Co...

PreTime
more Minutes
CookTime
a few Minutes
Yield
Some Servings

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at : March 4, 2026

Step:

  1. Directions:
    1. Preheat oven to 375F.

  2. 2. In a medium pot, heat oil over medium-high. Add onion and cook until softened, about 6 minutes.

  3. 3. Add flour and cook, stirring constantly, 1 minute. Gradually add milk, whisking constantly, and
    cook until slightly thickened and bubbling, about 3 minutes.

  4. 4. Season with salt and pepper and let sauce cool slightly.

  5. 5. In a food processor, combine bun, Parmesan, Italian seasoning and red-pepper flakes. Process until
    fine crumbs form.

  6. 6. Transfer half the mixture to a large bowl and combine with spinach, tuna and half the sauce;
    season with salt and pepper.

  7. 7. Fill each shell with 2 heaping Tbsp. spinach mixture and place in a 9x13 inch baking dish.

  8. 8. Top with remaining sauce and breadcrumb mixture.

  9. 9. Bake until sauce is bubbling and breadcrumbs are golden, about 20 minutes


Ingredients

  1. Ingredients:
  2. 3 Tbsp. extra-virgin olive oil
  3. 1 small yellow onion, diced small
  4. 1/4 cup all-purpose flour (spooned and leveled)
  5. 4 cups whole milk
  6. Coarse salt and ground pepper
  7. 1 hamburger bun, torn into large pieces
  8. 1/4 cup grated Parmesan
  9. 1/2 tsp. Italian seasoning
  10. 1/2 tsp. red-pepper flakes
  11. 1 package (10 oz.) frozen chopped spinach,
  12. thawed and excess liquid squeezed out
  13. 2 cans (6 oz.) each) light tuna in water, drained and flaked
  14. 6 oz. jumbo pasta shells (about 20), cooked according to package instructions

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