Pasta and cheese dinner

Pasta and macaroni Italian cuisine

4 cups scoobi do pasta 2 cups small broccoli florets 2 tblsp butter or margarine 1 small onion, finely chopped 1 clove garlic, minced 2 cups 2% milk 2 tblsp cornstarch 1-½ cups shredded cheddar cheese ½ cup shredded mozzarella cheese ¼ tsp each salt and pepper