Heat 1 tsp of olive oil in a large skillet over medium-high heat. Add the diced onion and sauté for about 3 minutes until translucent.

Add the lean ground beef to the skillet and cook until it's no longer pink, breaking it up with a wooden spoon as it cooks.

Once the beef is cooked through, drain any excess fat from the skillet. Then, add the ketchup, onion powder, garlic powder, and kosher salt. Mix everything together gently until well combined.

Sprinkle shredded cheddar cheese over the beef mixture and reduce the heat to low. Cover the skillet with a lid and let it sit for a few minutes to allow the cheese to melt.

While the cheese is melting, prepare the dressing. In a small bowl, whisk together the dijon mustard, apple cider vinegar, minced garlic, and olive oil. Season with salt and pepper to taste. If the dressing is too thick, you can thin it out with a little water.

To assemble the salad, start by arranging a bed of mixed salad greens in a large bowl. Then, add the cooked cheeseburger meat on top, along with your favorite burger toppings such as cherry tomatoes, sliced red onion, chopped pickles, diced avocado, and sweet potato fries.

Drizzle the homemade dressing over the salad, ensuring that each bite is coated with delicious flavor.

Serve immediately and enjoy the fantastic flavors of a cheeseburger in a healthier salad form!