three cheese burgers

i have a friend at work that i always joke with about the recipes on this blog. even though he is a single man who cooks for himself (really cooks), he can eat almost nothing on this blog because he can't eat dairy, and i clearly have a love affair with cheese. it's a shame really because i think that this recipe is one that should be enjoyed by all.
i didn't even intend to post this one...but it turned out so well that i just had to. enjoy!

ingredients:
1 # ground turkey
3/4 to 1 cup breadcrumbs (i use whole wheat)
1 egg
1/2 large onion, grated
salt
pepper
olive oil
burger buns (again, whole wheat)
4 slices of american cheese
1/4 cup shredded mozzarella
1/4 cup shredded cheddar

directions:
grate the onion into a large bowl and then add in the egg and whisk slightly. break up the turkey into the bowl and add in a pinch of salt and a few grinds of pepper, and then add in breadcrumbs until the mixture comes, and holds together. divide the mixture into 4 balls, and then further divide each of these into two.

meanwhile, heat some olive oil in a large pan over medium high heat. in a small bowl mix together the shredded mozzarella and shredded cheddar.

form a very thin burger patty with four of the balls. place a small scoop of the mozzarella and cheddar into the center of each of these patties, keeping it clear of the edges. then, pat out the remaining four patties and place on top of the first patties, sandwiching the cheese in the center. press the edges together to seal them well (you don't want your cheese leaking out while these cook!) and then place in the pan and sprinkle the top liberally with salt. cook these for about 6 to 7 minutes on each side, or until the burgers are cooked through. once cooked, add a slice of american cheese to the top of each patty, and then serve with fun fixings, fries, and a cool beer as i did! enjoy!