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Cheeseburger Tetrazzini: Creamy Ground Beef Spaghetti Bake for Busy Nights

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This Cheeseburger Tetrazzini is a creamy, cheesy baked spaghetti casserole packed with seasoned ground beef, tangy mustard and ketchup, and a blend of cheddar, mozzarella, and Parmesan cheeses. It’s topped like a burger — optional pickles, extra sauce — and baked to golden perfection. It’s fast, hearty, freezer-friendly, and full of family-friendly flavor.

Ingredients

Scale
  • 1 pound ground beef
  • 1/2 teaspoon salt
  • 1/2 teaspoon black pepper
  • 1 small onion, diced
  • 2 cloves garlic, minced
  • 8 ounces spaghetti or linguine, cooked and drained
  • 1 can (10.5 oz) cream of mushroom soup
  • 1/2 cup sour cream
  • 1/2 cup milk
  • 1 tablespoon yellow mustard
  • 1 tablespoon ketchup
  • 1 1/2 cups shredded cheddar cheese, divided
  • 1/2 cup shredded mozzarella cheese
  • 1/4 cup grated Parmesan cheese
  • 1/2 cup frozen peas (optional)
  • Cooking spray or butter (for greasing)

Instructions

  1. Preheat your oven to 350°F (175°C).
  2. In a large skillet over medium heat, cook the ground beef with salt, pepper, and diced onion until browned. Drain any excess grease.
  3. Stir in the minced garlic and cook for 1 minute.
  4. In a large bowl, mix together cream of mushroom soup, sour cream, milk, mustard, ketchup, 1 cup of cheddar cheese, and mozzarella cheese.
  5. Add the cooked pasta, ground beef mixture, and peas (if using) to the bowl. Stir to combine everything evenly.
  6. Grease a 9×13-inch baking dish with cooking spray or butter. Pour the mixture into the dish and spread evenly.
  7. Top with the remaining 1/2 cup cheddar cheese and sprinkle with Parmesan cheese.
  8. Bake for 25–30 minutes until hot and bubbly, and the top is golden.
  9. Let it rest for 5 minutes before serving.

 

Notes

  • Make-ahead tip: Assemble and refrigerate up to 1 day in advance.

  • Freezer instructions: Freeze unbaked casserole for up to 3 months.

  • Serving tip: Garnish with pickles and mustard drizzle for a true cheeseburger finish.

  • Substitutions: Use ground turkey or veggie crumbles for a lighter or vegetarian version.

  • Gluten-free option: Use gluten-free pasta and check your soup ingredients.

  • Storage: Refrigerate leftovers for up to 4 days in an airtight container.

Find it online: https://claradelish.com/cheeseburger-tetrazzini-creamy-ground-beef-spaghetti-bake-for-busy-nights/