Heat butter, sauté onion until aromatic. Add ground beef, cook until colour changes.

Add flour, stir until thickened. Add milk gradually while stirring until well-mixed. Add pasta, stir well, remove from the heat.

Add eggs, corn, red capsicum, peas and KEWPIE Salad Dressing Spicy Tomato, stir well.

Pour into heat-resistant dish, sprinkle mozzarella cheese over the top, and add pepperoni.

Bake in oven for 30 minutes with bottom heat 170˚C until done, remove, serve.