Preheat oven to 375°F (190°C). Lightly grease a baking sheet or line it with parchment paper.
Crush the crispy onions by placing them in a zip-top bag and using a rolling pin. Mix with shredded cheese if using.
Pat dry the chicken breasts and season with salt, pepper, garlic powder, and paprika.
Brush each chicken breast with honey mustard, then dip into the beaten egg.
Firmly coat each chicken breast with the crushed onion mixture, pressing to ensure it sticks well.
Place the coated chicken on the prepared baking sheet and bake for 25-30 minutes until golden brown and cooked through. The internal temperature should reach 165°F (75°C).
Let the chicken rest for a few minutes before serving. Enjoy!
Notes
For an air fryer version, cook at 375°F (190°C) for 15-18 minutes, flipping halfway through.