Here's a pic of one of two bacon cheeseburgers that I ate for lunch:
Mushrooms, lettuce, tomatoes, and mayo. Burger patties were made my way: with ground beef, salt, pepper, garlic powder, chili flakes, oregano, and olive oil for higher fat content. I find my burgers are a lot more savory when I make them this way. My brother David, by contrast, prefers to stuff his burgers with huge chunks of raw onion, which doesn't even cook through on the grill. Horrific. See here.