Bake onion rings (and fries if you’re using those) according to the package directions.

While the onion rings and fries bake, toast the sourdough bread (unless you prefer soft bread you can skip this step).

Spread your favorite BBQ sauce onto one side of each slice of bread.

Cook your hamburger patties. I put frozen patties directly on a hot skillet, sprinkle with steak seasoning, and flip to cook both sides.

Place cheese on patties right after you flip them so they will melt while the meat finishes cooking (I like to use Havarti but whatever your family likes will work).

Add lettuce to your bread, then the patties with cheese, then slices of avocado, and finally the onion rings.