In a large skillet set over medium-high heat, add 1 pound of lean ground beef along with 1/2 medium chopped onion. Cook for about 8-10 minutes, breaking up the beef as it browns and stirring occasionally. The onions should become soft and translucent, while the beef is well-cooked. Once browned, drain any excess fat from the skillet.

Lower the heat to medium and add 1/4 cup of unsalted butter to the skillet with the beef and onions. Stir in 1/2 teaspoon of garlic powder, 1 tablespoon of ranch seasoning, and 1 tablespoon of au jus seasoning. Next, fold in 1/2 cup of sliced pepperoncini peppers along with 1/4 cup of juice from the pepperoncini jar and 1/2 cup low sodium beef broth. Cook for an additional 3-5 minutes, allowing the flavors to meld and the sauce to thicken, stirring frequently.

While the beef mixture simmers, heat a separate skillet over medium heat. Lightly coat the insides of your burger buns with olive oil, then toast them in the skillet until they are beautifully golden and crisp—this should take about 2-3 minutes.

Once everything is ready, spoon generous amounts of the beef mixture into the toasted buns, allowing the mix to overflow just a bit for that classic sloppy Joe look. Optional toppings such as coleslaw, mayo, or sweet pickles can add extra flavor and texture. Serve immediately and watch your family enjoy this comforting meal!