An easy way to prepare a turkey breast in a slow cooker begins by blending together 2 1-ounce packages of dry onion soup mix and 3/4 cup of water. Pour the mixture over the turkey breast. In a small bowl, combine 2 tablespoons of garlic powder, 2 tablespoons of onion powder, and 1 tablespoon each of seasoned salt, dried parsley, oregano and basil. Sprinkle the seasonings evenly over the turkey breast. Cover and cook on low for eight hours.
Another easy recipe for preparing a boneless turkey breast in the oven starts by melting 6 tablespoons of butter in a small saucepan. Add in 2 tablespoons of lemon juice, 1 tablespoon of soy sauce and 1 tablespoon of diced green onion. Add 1/2 teaspoon of dried marjoram, 1/2 teaspoon of dried thyme, 1/2 teaspoon of dried sage and 1/8 teaspoon of pepper. Bring the mixture to a boil, turn off the heat and allow it to cool.
Place the boneless turkey breast on a shallow rack inside a roasting pan. Baste it with the butter mixture, cover it with foil, and place into an oven preheated to 325 degrees Fahrenheit. Roast for 1 1/4 hours to 1 3/4 hours or until the juices run clear and a meat thermometer reads 170 degrees Fahrenheit. Baste with the butter mixture every 10 to 15 minutes while roasting.