If you are looking for a restaurant that is between fast food and a table service restaurant, a step above Chipotle, and with a Latin flavor, you can check out Lena Latin Grill in Midtown. I stopped in last week for a little NYC Foodie tasting and had some fine bites. You handcraft your meal by chooseing either a wrap, a salad, or a plate. You choose your protein (chicken, steak, fish, or tofu) and can add sides and sauces. For a quick, casual bite, it'll hit the spot.