If you're a fan of seafood, you'll love this Thermomix recipe for tuna and rice stuffed capsicum. The capsicum is filled with a mixture of cooked rice, canned tuna, onions, herbs, and spices. It is then baked until the capsicum is soft and the filling is heated through. Serve these tuna and rice stuffed capsicum with a squeeze of lemon juice for a refreshing and satisfying meal.