In a large bowl, combine the ground chicken, Ranch seasoning mix, shredded cheddar cheese, and bread crumbs. Season with salt and pepper to taste.
Mix the ingredients together gently until just combined (do not overmix, as it can make the burgers tough).
Divide the mixture into 4 equal portions and shape each portion into a patty, making them slightly larger than the burger buns to account for shrinkage while cooking.
2. Cook the Burgers:
Heat the olive oil in a large skillet or grill pan over medium heat.
Add the patties to the pan and cook for 5-6 minutes per side, or until the internal temperature reaches 165°F (74°C) and the burgers are golden brown and cooked through. If you like, you can add a slice of cheddar cheese on top of each patty during the last minute of cooking and cover with a lid to melt the cheese.
3. Assemble the Burgers:
Toast the burger buns in the skillet or on the grill, if desired, until golden brown.
Spread a little ranch dressing on the bottom half of each bun (optional for extra flavor).
Place a cheddar ranch chicken patty on the bun, then top with fresh lettuce, tomato slices, and onion (if desired).
Top with the other half of the bun.
4. Serve:
Serve the Ultimate Cheddar Ranch Chicken Burger hot with your favorite sides, such as fries, sweet potato fries, or a side salad.
