Pasta Casserole
["1 medium onion, coarsely chopped", "3 medium garlic cloves, finely chopped", "2 Tbsp. olive oil", "2 cans diced tomatoes", "1/4 tsp. crushed red peppers", "3/4 tsp. salt", "1/4 tsp. pepper", "1 lb. ziti", "1 (10 oz.) frozen spinach", "1 lb. Mozzarella cheese, cubed", "1 c. grated Parmesan cheese"]
["Cook onion and garlic in olive oil until soft.", "Add tomatoes, crushed red peppers, salt and pepper.", "Simmer 15 minutes.", "Cook pasta and drain.", "Mix Mozzarella cheese, pasta and spinach.", "Add 2/3 cup Parmesan cheese; toss well.", "Put into casserole dish, sprinkle with the rest of the Parmesan cheese.", "Put under broiler until the cheese is golden brown."]
["onion", "garlic", "olive oil", "tomatoes", "red peppers", "salt", "pepper", "frozen spinach", "Mozzarella cheese", "Parmesan cheese"]