Preheat oven to 350 degrees F. Stack tortillas; wrap in foil. Heat in the oven for 10 minutes to soften.
Meanwhile, for filling, in a large skillet, cook turkey, onion, and garlic over medium heat until meat is brown and onion is tender. Drain off fat. Stir in beans, the 1/2 cup salsa, and the chili powder. Heat through.
Spoon about 1/3 cup of the filling onto each tortilla and top each with 1 tablespoon cheese and 1 tablespoon lettuce. Fold bottom edge up and over filling, just until covered. Fold in opposite sides. Roll up, tucking in sides.
If desired, serve burritos with additional salsa and dairy sour cream with snipped fresh cilantro.