Boil 1/2 cup water, add textured protein and stir until combined. Set aside. Chop spinach and set aside. Heat olive oil on medium, add garlic, celery, carrot and chopped peppers until tender. Add seasonings and cook one minute more. Remove from pan. Cook lowest fat ground turkey and beef and drain any excess fat/juices. In same pan add vegetable mixture. Combine and cook two minutes more. Assemble tacos by layering meat, then sauce then cheese then spinach. Serve with avocado slices if desired. Enjoy!