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Easy Tuna Casserole with Green Beans

Tuna Casserole with Green Beans

This casserole is a variation of the classic tuna noodle casserole but includes fresh or canned green beans for extra texture, nutrition, and color. The dish blends cooked noodles, tuna, and vegetables with a creamy sauce—usually made with mushroom soup or homemade white sauce—and bakes to golden perfection. It’s warm, hearty, and simple, making it a timeless family favorite.

Ingredients

Scale
  • 2 cans (5 oz each) tuna, drained and flaked

  • 3 cups cooked egg noodles

  • 2 cups green beans (fresh, canned, or frozen)

  • 1 can (10 oz) cream of mushroom soup

  • 1 cup milk

  • 1 cup shredded cheddar cheese

  • ½ cup sour cream (optional for extra creaminess)

  • 1 small onion, finely chopped

  • ½ tsp garlic powder

  • 1 tsp salt

  • ½ tsp black pepper

  • 1 cup breadcrumbs or crushed potato chips (for topping)

  • 2 tbsp melted butter

Instructions

  • Preheat the oven – Set your oven to 375°F (190°C) and grease a 9×13-inch baking dish.

  • Cook the noodles – Boil egg noodles in salted water until al dente, then drain and set aside.

  • Prepare the green beans – If using fresh beans, steam or boil them for 3–4 minutes until just tender. Drain excess water.

  • Make the sauce – In a large bowl, combine cream of mushroom soup, milk, sour cream, salt, pepper, and garlic powder. Stir until smooth.

  • Mix everything – Add cooked noodles, tuna, green beans, onion, and half of the shredded cheese. Mix well until evenly coated in the sauce.

  • Assemble the casserole – Pour the mixture into the greased baking dish and spread it evenly.

  • Add the topping – Combine melted butter with breadcrumbs (or crushed chips) and sprinkle over the top. Finish with the remaining cheese.

  • Bake until golden – Bake uncovered for 25–30 minutes or until bubbly and golden brown.

  • Cool slightly before serving – Let the casserole rest for 5 minutes before serving to help the sauce thicken and set.