A torta is a Mexican grilled sandwich that you can fill with just about anything. It starts with a baguette spread with mashed, seasoned black beans then layered with fillings like grilled steak, chicken or vegetables. The toppings are only limited by your imagination. You can use Mexican cheeses, grilled or raw onions, steak sauce, fresh avocados, cilantro, fresh or pickled jalapenos, fresh lettuce and tomatoes and on and on. This recipe for a grilled zucchini torta is with hopes of catching up on the upwards of 10-12 pounds of zucchini in my fridge and taken from Rick Bayless' version. His grilled skirt steak torta is complimented with homemade chipolte steak sauce, which I sometimes use on this sandwich. The sauce has quickly become a new staple in my house (added to the homemade ketchup, mustard and hot sauce I'm already making!). One of my favorite toppings is also pickled jalapenos - it is ridiculously easy to make so give it a shot.