Pasta with Meat Sauce
Peel and finely chop carrot and celery. Peel and chop onion and garlic. Heat oil in a pan and saute onion and garlic until soft, add vegetables and saute briefly. Add ground meat and saute until crumbly, stirring. Season with thyme, salt and pepper. Add tomato paste and peeled tomatoes, simmer for about 30 minutes.
Cut ham into smaller pieces.
Cook spaghetti in plenty of boiling salted water until al dente, drain well and arrange on plates. Spread with sauce and sprinkle with ham. Serve.