Heat a large skillet over medium-high heat and add the butter and the shrimp. Saute the shrimp until pink then add the onions, tomatoes and the cilantro. Let it sit for about 2 minutes then enhance the favor by adding the tequila, chili powder, if desired, salt and pepper, to taste. Then let it sit for 1 to 2 minutes so it may absorb the favor of the tequila.
Serve with rice and vegetables.
This recipe was provided by professional chefs and has been scaled down from a bulk recipe provided by a restaurant. The Food Network Kitchens chefs have not tested this recipe, in the proportions indicated, and therefore, we cannot make any representation as to the results.