Preheat your oven to 400°F and line a large baking sheet with parchment paper.
Cut the chicken breast into uniform 1-inch bite-sized nuggets.
Whisk the egg in a small shallow bowl until well combined.
In a separate shallow dish, whisk together the almond flour, garlic powder, onion powder, sea salt, and black pepper.
Dip each chicken nugget into the egg wash, then dredge through the almond flour mixture until fully and evenly coated.
Arrange the nuggets on one side of the prepared baking sheet and lightly drizzle with half of the olive oil.
Place the broccoli florets on the other side of the sheet, tossing them with the remaining olive oil and a pinch of salt.
Bake for 15 to 18 minutes, flipping the nuggets halfway through, until the coating is crisp and the chicken is cooked through.
While the chicken bakes, whisk together the raw honey and Dijon mustard in a small ramekin until smooth.
Serve the warm nuggets immediately alongside the roasted broccoli with the honey mustard sauce for dipping.