Preheat your oven to 400°F and line a small baking sheet with parchment paper.
Peel and dice the sweet potato into half-inch cubes, then place them on the baking sheet and roast for 20 minutes until tender.
Slice the chicken breast into one-inch bite-sized nuggets and place them in a mixing bowl.
Toss the chicken bites with avocado oil, sea salt, black pepper, garlic powder, and onion powder until every piece is evenly coated.
Heat a grill pan or cast-iron skillet over medium-high heat and grill the chicken for 3 to 4 minutes per side until charred and cooked through.
In a small ramekin, whisk together the honey, Dijon mustard, and apple cider vinegar until the sauce is smooth.
Place the broccoli florets in a steamer basket over boiling water and steam for 5 minutes until they are vibrant green and tender-crisp.
Arrange the grilled chicken bites on a plate with the roasted sweet potatoes and steamed broccoli, serving the honey mustard on the side for dipping.