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Baked Spaghetti

139 reviews
Test Kitchen Approved
Total Time

Prep: 30 min. Bake: 30 min.

Makes

12 servings

Updated: Jun. 30, 2023
This cheesy crowd-pleasing dish puts a different spin on spaghetti. The leftovers, if there are any, freeze well for a quick future meal. —Ruth Koberna, Brecksville, Ohio
Baked Spaghetti
Baked Spaghetti Recipe photo by Taste of Home
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Ingredients

  • 1 cup chopped onion
  • 1 cup chopped green pepper
  • 1 tablespoon butter
  • 1 can (28 ounces) diced tomatoes, undrained
  • 1 can (4 ounces) mushroom stems and pieces, drained
  • 1 can (2-1/4 ounces) sliced ripe olives, drained
  • 2 teaspoons dried oregano
  • 1 pound ground beef, browned and drained, optional
  • 12 ounces spaghetti, cooked and drained
  • 2 cups shredded cheddar cheese
  • 1 can (10-3/4 ounces) condensed cream of mushroom soup, undiluted
  • 1/4 cup water
  • 1/4 cup grated Parmesan cheese

Directions

  1. In a large skillet, saute onion and green pepper in butter until tender. Add tomatoes, mushrooms, olives, oregano and, if desired, ground beef. Simmer, uncovered, for 10 minutes.
  2. Place half the spaghetti in a greased 13x9-in. baking dish. Layer with half the vegetable mixture and 1 cup cheddar cheese. Repeat layers.
  3. In a small bowl, combine soup and water until smooth; pour over casserole. Sprinkle with Parmesan cheese. Bake, uncovered, at 350° until heated through, 30-35 minutes.

Test Kitchen Tips
  • To prevent pasta from sticking together when cooking, use a large pot and 3 quarts of water for each 8 ounces of pasta you plan to cook. Add 1 tablespoon cooking oil to the water. (This also prevents boiling over.) Bring the water to a full rolling boil before stirring in the pasta. Stir several times to separate the pasta until the water returns to a boil.
  • You can convert any recipe from 13x9 to 8x8—here's how.

    • Nutrition Facts

    1 cup: 239 calories, 9g fat (5g saturated fat), 25mg cholesterol, 500mg sodium, 30g carbohydrate (5g sugars, 3g fiber), 10g protein.