Preheat the oven: Heat the oven to 400°F and line a sheet pan with parchment paper for easy cleanup.
Season the sweet potato: Toss the sweet potato cubes with 2 tablespoons olive oil, paprika and a pinch of salt until evenly coated.
Roast until golden: Spread the sweet potato in a single layer on the sheet pan and roast for about 25 minutes, flipping once, until the edges turn deep golden and the flesh is fork-tender.
Cook the brown rice: Bring the water or broth to a boil, stir in the rice, cover and simmer on low for about 20 minutes until tender and the liquid is absorbed.
Season the chicken: Pat the chicken breast dry and rub both sides with minced garlic, cumin, salt and pepper.
Sear the chicken: Heat the remaining 1 tablespoon olive oil in a skillet over medium-high heat and sear the chicken for about 5 minutes per side until golden brown.
Finish cooking the chicken: Lower the heat to medium, cover the skillet, and cook for about 5 more minutes until the internal temperature reaches 165°F and the juices run clear.
Rest and slice: Let the chicken rest for 5 minutes before slicing it into strips so the juices stay in the meat.
Steam the broccoli: Steam the broccoli florets for about 4 minutes until bright green and just tender, keeping a slight snap.
Make the yogurt sauce: Whisk together the Greek yogurt, honey, lemon juice and a pinch of salt until smooth and creamy.
Assemble the bowls: Divide the brown rice among four bowls, then top each with roasted sweet potato, sliced chicken and steamed broccoli.
Add the sauce and serve: Drizzle each bowl with the yogurt sauce right before eating so it stays creamy.