In a large saucepan combine onion, chicken carcass, shrimp shells and enough water to cover all (at least 3 cups), and simmer for approximately 1 hour. Season to taste with salt and pepper. Reserve 2 cups for Paella.
Rinse chicken pieces and pat dry. Season with salt, pepper. Saute in 1/4 cup olive oil until golden. Remove chicken and saute garlic, onion and rice for a few minutes. Add chicken back to skillet on top of rice, tuck in seafood and sausage. Add shrimp/chicken stock, wine, saffron and bell peppers. Cover and simmer 20 minutes. Sprinkle peas on top, cover again and continue to cook 10 additional minutes. Serve with hot pepper sauce.
Recipe courtesy of Mark Motta