These burgers will be a huge hit, I promise!
Combine ground beef, steak seasoning (OR 1 tsp each of salt, pepper and garlic powder) and egg in large bowl. Using your hands, mix together and shape into 4 hamburger patties. Set aside.
Lay out 4 open Wonder hamburger buns on a large platter or individual plates. Add desired condiments to each bun. Set aside.
Cut bacon slices in half. Take 3 bacon strip halves and lay them side by side on a griddle. Take 3 more bacon strip halves and create a square, weaving the new pieces alternately over and under each of the 3 pieces laying on the griddle. Repeat 3 more times to create a total of 4 bacon weaves.
Turn on griddle and cook bacon weaves for several minutes until edges are just starting to brown, then carefully flip each bacon weave. If you flip too soon, the weave may fall apart. Cook an additional few minutes until bacon reaches desired crispness. Remove to a paper towel-lined plate to cool. Then place one bacon weave on each hamburger bun bottom.
Cook hamburger patties on a grill or griddle over medium-high heat. Just before meat is cooked to desired doneness, top each patty with a slice of cheese. When cheese is melted, place each hamburger patty on top of a bacon weave on each bun.
If desired, add jalapenos to the top of each hamburger patty. Next, add lettuce and tomato slices.
Slice onion into rings that are approximately 1/2-inch thick. Remove inner rings and set aside. Place 4 rings on the griddle and crack one egg into each one. Cook over medium heat until cooked through. Place each onion-ringed egg on top of a tomato slice.
If desired, add sliced avocado on top of each egg. Then, put the top of the bun in place and serve!