Preheat your oven to 400°F and line a large baking sheet with parchment paper for easy cleanup.
Cut the chicken breast into uniform bite-sized pieces to ensure even cooking.
In a shallow bowl, whisk the egg thoroughly until the yolk and white are completely combined.
In a second shallow bowl, whisk together the almond flour, smoked paprika, garlic powder, onion powder, sea salt, and black pepper.
Dip each chicken piece into the egg wash, allowing any excess to drip off, then dredge in the almond flour mixture, pressing firmly to adhere the crust.
Arrange the coated nuggets on the prepared baking sheet and lightly mist the tops with avocado oil spray to help them crisp up.
Bake for 15 to 18 minutes, flipping the nuggets halfway through the cooking time, until they are golden brown and reach an internal temperature of 165°F.
While the chicken is baking, steam the broccoli florets in a steamer basket over boiling water for 4 to 5 minutes until they are tender-crisp and bright green.
Serve the crispy chicken nuggets immediately alongside the warm steamed broccoli for a clean and balanced meal.