In a large, deep skillet brown the Italian sausage and drain off any grease. Push the sausage to one side of the skillet, or remove completely if your skillet is a little too small.
Add the garlic, onion, tomatoes, peppers and kale. Toss the vegetables and saute 4-5 minutes until the onions and tender and the kale has wilted.
Stir in the tomato paste and heavy cream until a sauce forms. Add salt and pepper to taste.