Place your ground beef, onion, garlic, and salt and pepper in a mixing bowl and hand mix well
Using your hands form your meat into 4 patties, no more than 1/2 inch thick
Place your 4 slices of bacon in a cold saute pan and place on low-medium heat turning often
It should take your bacon about 12 minutes to cook
Once cooked, transfer to a plate lined with paper towels to absorb all the extra fat
Now that your bacon is cooling, rub both the tops and bottoms if your burgers with mustard to cover all sides and place in the pan on the stove with the bacon grease and cook over medium-high heat
Cook for 4 minutes on the first side, then flip and cover and cook for another 3-4 minutes or until done to your liking
While your burgers are cooking, rinse your lettuce and remove the outer layers keeping them intact to use as shells for your burgers
In a seperate saute pan, cook your eggs all over easy or to your liking
Once your burgers are done cooking, place one in each lettuce leave, place your bacon on top of each burger, then add a fried egg, and sliced tomatoes
Wrap that lettuce all around that burger and dig in
Enjoy