Preheat your oven to 400°F (200°C).
Toss the cubed sweet potatoes with half of the olive oil and a pinch of sea salt on a parchment-lined baking sheet.
Roast the sweet potatoes for 20-25 minutes or until they are tender and slightly browned.
While potatoes roast, season the chicken breast with garlic powder, salt, and pepper.
Heat a grill or grill pan over medium-high heat and lightly coat with the remaining olive oil.
Grill the chicken for 6-7 minutes per side, or until the internal temperature reaches 165°F.
Let the chicken rest for 5 minutes before slicing it into thin strips.
Place the fresh baby spinach in a large bowl as the base.
Top the spinach with the warm roasted sweet potatoes and sliced grilled chicken.
Finish the bowl with the fresh avocado slices and an optional squeeze of lemon or lime.