Add cheese on tortilla medium heat you do not want the tortillas to burn.once cheese has melted begin to assemble add your grilled chicken or ham,sliced tomato, avocado, onion, and I squeeze a little ketchup over the veggies. If you're a ketchup lover like myself trust me it's good.

Add cheese on another tortilla and melt do not add veggies once cheese has completely melted and tortilla has crisped place over your other half of sincronizada with the veggies and voila Mexican sandwich ! Simple yet satisfying.