Cut the chicken breast in half horizontally, then in half vertically.
Season with salt, black pepper, paprika, chili flakes, oregano, oil and mix.
Fry the meat on both sides over medium heat for 7-8 minutes.
Meanwhile, prepare the sauce: in a bowl, mix the Greek yogurt, a pinch of salt, and the grated garlic.
Assemble the burger: spread the buns on both sides with sauce, add lettuce leaves, sliced tomato, chicken breast, cheese slices in layers, put in the oven or microwave until the cheese melts, add avocado slices, cover with the second part of the bun and serve with pleasure.