Preheat oven to 500 degrees F.
In foil lined baking pan, place serranos and spray lightly with oil. Heat for 30 to 45 minutes or until serranos are slightly browned. Allow to cool then chop and set aside.
Form several 8 to 12-ounce patties with ground angus beef. Grill to taste or temperature.
Combine cilantro and mayonnaise.
When burgers are almost done, top with chopped roasted serranos then the cheese.
Remove from grill when cheese is melted.
Place burger on bottom bun and cilantro mayonnaise on top bun.
This recipe was provided by a chef, restaurant or culinary professional. It has not been tested for home use.
Recipe courtesy of Puppy38 of Casino El Camino, Austin, TX