Start by toasting the bread. Do this by heating a skillet or large enough pan over medium heat. Once hot, add butter and some minced garlic. I did ~1T butter and 1/2 tsp garlic per hoagie. Once the butter is melted, place the inside of the bread face down. I slid the bread around the pan to make sure all the butter was soaked up and then I placed a bacon press on top to flatten the bread some and get a good even browning (~1-2min). Once bread is toasted, set aside.
In a bowl combine your meat with your seasoning. I used salt, pepper, onion, powder, sazon, and tumeric, but however you like to season your burger meat will work. I have learned that my meat is seasoned enough when it is combined and I can smell seasoning. Game meat does not have a lot of fat, so it takes a bit more seasoning than you think.
Once combined, form 4 patties. In a skillet over medium-high heat, heat your bacon fat or butter. Once hot, place your patties in and toss in your onions.
Cook patties for ~3 minutes or until browned and flip and cook for another 3 min.
Once browned, begin to chop up the meat with your metal bench scraper or spatula.
Continue to chop and mix until all of your meat is cooked.
Once cooked, top with the American cheese slices. Let the slices melt a bit.
Once a bit melted, start chopping and mixing all of the meat and cheese together.
Assemble your chopped cheese. I like to use tomato, lettuce, mayo, and ketchup and then wrap it in parchment paper and foil. ENJOY!