01 - In a large bowl, combine ground turkey or chicken, egg, oats, red onion, Dijon mustard, garlic, parsley, smoked paprika, salt, and black pepper. Mix gently until just combined—do not overwork the meat mixture.
02 - Divide mixture into 4 equal portions and shape each into a patty about 1/2 inch thick. Press gently to compact without making them too dense.
03 - Preheat a nonstick skillet or grill over medium-high heat. Lightly oil the surface if needed to prevent sticking.
04 - Cook patties for 4-5 minutes per side, or until golden brown and fully cooked through. Internal temperature should reach 165°F for safe consumption.
05 - Lightly toast whole wheat buns on the grill or in a toaster for added texture and to prevent sogginess.
06 - Place a lettuce leaf on the bun base, top with a cooked patty, Greek yogurt, tomato, onion, avocado slices if desired, and finish with the top bun.