1. Cook fettuccine in boiling water in a large saucepan following packet directions. Drain, set aside and keep warm.
2. Heat butter in a large frying pan. Cook leeks for 8 to 10 minutes or until tender. Add ham and capsicum. Cook for 2 to 3 minutes longer. Stir in cream, bring to the boil, then reduce heat and simmer for 4 to 5 minutes.
3. Add fettuccine to pan. Toss to combine. Season to taste with black pepper and serve immediately.