Ingredients: penne, salt, 1 onion, 2 celery sticks, 1 carrot, 1 garlic clove, 1 can diced tomatoes, ketchup, pepper, mozzarella,

Boil the penne just al dente in boiling water with some salt. Bake in hot oil 1 finely chopped onion in a minute or five. Add 2 diced celery sticks, 1 diced carrot and 1 finely chopped garlic clove. Stir fry about 5 minutes. Add a can diced tomatoes and an additional some ketchup and bring to taste with salt and pepper. Let it gently simmer for a minute or 5. Stir in the penne by and place in a ovenporrf dish. Put mozzarella pieces over the dish. Put the ovenproof dish in the preheated oven at 175 degrees (fan) for approximately 30 minutes and serve. Enjoy!