A freshwater fish with a firm textured flesh that has medium to high fat content. It is one of the most popular varieties of trout throughout the world. Most commercially raised Rainbow trout average 8 ounces but they can grow up to 50 pounds. Rainbow trout can be found fresh and frozen, whole and in fillets, and is generally fried when cooked. They can also be grilled, broiled, baked, steamed and poached.
To check the fish for doneness, use the tip of a sharp knife and cut through the thickest part of the fillet. If the fish has been properly cooked, the meat will appear opaque but will still be moist.