INGREDIENTS
1
box ziti pasta
1/2
medium red onion (, cut into small cubes)
1/2
medium green bell pepper (, cut into small cubes)
1
large garlic clove (, minced)
1 tsp
dried oregano
1 tsp
salt
1/2 tsp
ground black pepper
1 lb
lean ground beef
2 tbsp
vegetable oil
1
jar marinara sauce (, separate 1/2 cup sauce and set aside)
1
( 15 oz.) container ricotta cheese, separated
2 cups
shredded mozzarella cheese (, separated)