Ingredients

2

tablespoons olive or vegetable oil

2

large onions, chopped (2 cups)

4

medium carrots, chopped (2 cups)

4

cups sliced mushrooms

2

medium green bell peppers, chopped (2 cups)

4

cans (14 1/2 ounces each) diced tomatoes with basil, garlic and oregano, undrained

2

cans (15 ounces each) tomato sauce

2

cans (6 ounces each) Italian-style tomato paste

1

tablespoon sugar

1

teaspoon salt

1

teaspoon fennel seed, crushed, if desired

24

ounces uncooked spaghetti

Grated Parmesan cheese, if desired

Preparation

Heat oil in 10-inch skillet over medium-high heat. Cook onions and carrots in oil 3 to 4 minutes, stirring frequently, until crisp-tender. Stir in mushrooms and bell peppers.

Spoon vegetables into 4- to 6-quart slow cooker. Stir in remaining ingredients except spaghetti and cheese.

Cover and cook on low heat setting 8 to 10 hours.

Cook and drain spaghetti as directed on package. Serve sauce over spaghetti. Sprinkle with cheese.