Mix the ground beef, taco seasoning, salsa, Worcestershire sauce and cilantro.Form into 4 patties 3/4 inches thick and press your thumb into the middle to form a depression on top prevent bulging.
Brush the patties with oil, place on grill and cook until golden brown and slightly charred, about 3-5 minutes per side.Set aside, cover and let rest for 10 minutes.Meanwhile heat the oil in a pan over medium-high heat.
Add the onions and peppers and saute until tender, about 4-7 minutes.
Mix in the taco seasoning and water and simmer until most of the liquid has evaporated.Assemble burgers with condiments of choice and enjoy!