Pizza Casserole

2 cup uncooked egg noodles 
1/2 pound ground beef 
1 onion, chopped 
2 clove garlic, minced 
1 green bell pepper, chopped 
1 cup pepperoni, sliced 
16 oz pizza sauce 
4 tbsp milk 
1 cup mozzarella cheese, shredded 

Cook noodles according to package directions.Preheat oven to 350 degrees F (175 degrees C).In a medium skillet over medium-high heat, brown ground beef with onion, garlic, and green bell pepper. Drain excess fat. Stir in noodles, pepperoni, pizza sauce, and milk and mix well. Transfer to a 2 quart casserole dish. Bake for 20 minutes, remove from the oven, top with cheese, and bake for 5 to 10 more minutes until cheese is melted.