Spaghetti Sauce - cooking recipe

Ingredients

2 lb. bulk Italian sausage (I always use Hillshire Farm hot and spicy)
2 c. chopped onion
2 cloves minced garlic or 1 tsp. dried, minced garlic
2 (28 oz.) cans whole tomatoes
1 (8 oz.) can sliced mushrooms, undrained
1 tsp. oregano leaves
2 c. chopped green pepper
12 oz. can tomato paste
2 tsp. basil leaves
1/4 tsp. crushed red pepper (if desired)

Preparation

Brown sausage, onion, green pepper and garlic. Drain.
Add the remaining ingredients and simmer, uncovered.
I let this cook for hours on low. The longer it cooks, the better it is.