The market is bursting with Walla Walla sweet onions so I had to grab some to caramelize up. In my opinion they are the absolute best on grilled sandwiches! Caramelizing onions is easy. Go to >this link< to read the best instructions on how to do it. =) This here isn't a recipe, really, more like an idea to go and run with. Here's what we like on ours!
Sauteed green peppers
Assemble ingredients on bread. Heat grill to medium heat and spritz grate with olive oil. Grill both sides until desired crispness.