Cook pasta until al dente (check packet for timing, usually 8-10 minutes), drain through a sieve
Remove casing from sausage and cut into thick slices. Peel onion and clean red and green peppers, cut all into thin strips
Heat oil in a large pan over medium-high heat. Fry sausage slices for 5 minutes, turning occasionally, then add onion and peppers and fry for 3 minutes
Grease a baking dish with fat and add drained pasta, sausage, peppers and onion, mix well
In a bowl, mix cream with gypsy sauce, chili or shashlik sauce, ketchup and curry powder. Pour the sauce over the pasta mixture and spread grated Gouda cheese on top
Bake in preheated oven at 225°C (437°F) for 20-25 minutes until golden
Chop fresh parsley and sprinkle over the casserole, then serve immediately