Preheat your oven to 400°F.
Prepare the sweet potato by scrubbing it clean. Dice into 1-inch cubes and place on a baking sheet.
Toss the diced sweet potato with 1 tablespoon olive oil, a sprinkle of garlic powder, salt, and pepper.
Roast the sweet potatoes in the oven for 25-30 minutes, or until tender and slightly caramelized.
While the sweet potatoes are roasting, prepare the broccoli by cutting it into florets. Toss with a little olive oil, salt, and pepper.
Place the broccoli on a separate baking sheet and roast in the oven for about 15-20 minutes until edges are crispy.
Season the turkey breast with a drizzle of olive oil, garlic powder, salt, and pepper.
Preheat your grill to medium-high heat and grill the turkey breast for about 6-7 minutes per side, or until the internal temperature reaches 165°F.
Once cooked, let the turkey rest for a few minutes before slicing.
Plate the sliced turkey breast with a serving of roasted sweet potatoes and broccoli. Enjoy your hearty Whole30-approved lunch!