Ski Slope Spaghetti - from Doris

1 lb. spaghetti, cooked and drained
1 lb. shredded Mozzarella cheese
1 lb. jar spaghetti sauce (Ragu Chunky Garden Style - Tomato, Garlic & Onion is my favorite.)
4 eggs beaten
1 cup milk
1 pkg. pepperoni

Preheat oven to 350 degrees. Spray 9X13" pan with non-stick vegetable spray. Put cooked spaghetti in pan. Mix egg and milk and pour over spaghetti. Top with 1/2 of the cheese, evenly distributed. Bake 7 minutes and remove. Pour sauce over top. Add remainder of cheese. Top with pepperoni. Bake for 35 minutes. Remove and let stand 5 minutes. Cut into squares and serve.