Home is where the heat is. No matter how long you've been away from Denver -- a month, a week, a day -- as you head back into town from DIA, you can feel yourself jonesing for great Mexican food. And now you can get a fast fix just off Pe?a Boulevard, at this second outpost of Jack-n-Grill, a sort-of franchise operation that features entertainment many nights and the same fantastic food all the time. No matter what you crave -- true green chile, ranchero tacos, a Frito pie or a fat carne asada burrito -- Jack-n-Grill will get you back on track.