Line, skillet with slices of lemon, orange, or both. Season fish and place on top of lemons. Top with dill and cover with additional lemon or orange slices. Cover and turn to 250. When valve clicks, turn to simmer and cook for 10 minutes or until fish is firm and opaque. Note: If you use Orange Roughy fillets, use just orange slices or just seasonings. Lemon overpowers the flavor of this fish.