Combine the beef, garlic, squash, zucchini, lime juice, oregano, ginger, turmeric, and sea salt in a bowl and marinate in the refrigerator for at least 30 minutes.
Heat the oil in a skillet over medium heat and cook the meat and vegetables until the meat is cooked through, about 7 minutes.
Meanwhile, combine the salsa ingredients.
Spoon the meat and vegetables into lettuce leaves and top with the salsa to serve.