In a medium skillet, brown ½ pound of lean hamburger meat over medium-high heat for about 5-7 minutes, stirring occasionally until fully cooked. Drain any excess fat, then sprinkle in the dry onion soup mix and stir to combine. Pour in ¼ cup of ketchup, 1 tablespoon of apple cider vinegar, and any additional seasonings you like. Allow the mixture to simmer on low heat for about 5 minutes, letting the flavors meld together.

While the beef mixture is simmering, heat 2 tablespoons of canola oil in a heavy-bottomed skillet over medium heat. Let the oil heat until it shimmers but doesn't smoke, which usually takes about 2-3 minutes.

Begin preparing the flatbreads by dividing the thin crust pizza dough into six equal pieces on a lightly floured surface. Use a rolling pin to roll out each piece into a round roughly 6 inches in diameter.

Carefully place one piece of rolled dough into the hot oil, frying it for about 1 minute on each side until it turns golden brown and bubbly. Use a spatula to gently press down on the flatbread for even cooking.

With your cooked flatbreads ready, start assembling the Cheeseburger Flatbread Melts. Spoon a generous amount of the beef mixture onto half of each fried flatbread, spreading it out evenly. Top with shredded cheddar cheese.

Make sure to serve the Cheeseburger Flatbread Melts warm for the best flavor experience.