Cook ground turkey and diced onions in a large non-stick pan over medium-high heat. Stir and break up the turkey while it’s cooking. When turkey is almost completely cooked through, (about 5-10 minutes), add the sauce and seasonings to the pan. (Add mayonaise and stevia here if desired. The mayo will make the meat a bit more moist, and the stevia will give it a slightly sweet/salty taste!)
Stir and continue to cook until the ground turkey is completely cooked (when it is no longer pink, about 10-15 minutes total). Remove from heat. Sprinkle grated cheddar over meat evenly while meat is still warm. Stir cheese into meat if desired.
To make the lettuce wraps, Cut off the stem (or base) of the lettuce head, and cut in half long ways. Peel off individual leaves, and wash and pat dry. Scoop 1/2 cup meat into lettuce wraps and serve with tomatoes, pickles, and ketchup and mustard if desired! Enjoy!