I know the old Hank Hill meme was "Taste the meat, not the heat," but I have never really cared for food that is cooked on a propane grill. It just doesn't have the same flavor that cooking over wood/charcoal does.
Yes, you still get the flavor of the carmelized fat, but the wood/charcoal adds an additional layer of flavor that's just makes food so cooked pop.
Castle Key makes a really tasty chicken and cheese enchilada. Good, solid recipe.
A couple of years ago he decided to cook the chicken on his Big Green Egg. Really added to the flavor.
Then he had a stroke of idiot/savant brilliance and also started baking the enchiladas on the grill, too. Even though they're in a pan, they still pick up the flavor of the burning charcoal, and it's simply incredible.
Took a good dish and made it an incredible dish.
Some years ago friends of mine upgraded their propane grills, and gave me their old one. I cooked on it a number of times, finished off the tank of propane, and never had it refilled. I went back to cooking on the grill.
I'd not done much grilling over the past couple of years because of the patio door situation, but now that I have that resolved, and as soon as the contractor is finished with the siding and I can have my back yard back, I'm going to grill like mad.