Lasagna - cooking recipe

Ingredients

2 lb. ground beef
1/2 c. chopped onion
1 qt. chopped tomatoes
2 (12 oz.) cans tomato sauce
2 tsp. salt
1/2 tsp. pepper
2 tsp. chili powder
1/2 tsp. oregano leaves
8 oz. lasagna
16 oz. Ricotta or cottage cheese
12 oz. shredded or thinly sliced Mozzarella cheese
1 c. grated Parmesan cheese

Preparation

In large heavy pan, lightly brown beef and onion.
Add tomatoes, tomato sauce, salt, pepper, chili and oregano leaves; simmer uncovered, stirring occasionally, about 30 minutes.