Rinse 1 cup of brown rice or quinoa under cold water until clear.
In a medium saucepan, bring 2 cups of water or low-sodium broth to a boil with ¼ teaspoon salt. Add rinsed grains, stir, cover, and simmer according to package instructions.
Preheat oven to 425°F (220°C). Toss cubed sweet potato, red bell pepper, and broccoli with olive oil, smoked paprika, garlic powder, salt, and pepper. Roast for 20–25 minutes.
Heat a large skillet over medium-high heat. If using very lean beef, add olive oil. Sauté diced onion for 3–4 minutes. Stir in minced garlic, then add ground beef. Cook until browned.
Add soy sauce, tomato paste, smoked paprika, cumin, chili powder, oregano, black pepper, and salt. If dry, add water. Cook for 2–3 minutes. Adjust seasoning.
In a small saucepan, warm black beans and corn over medium heat with a splash of water and pinch of salt and pepper for 3–5 minutes.
Whisk together Greek yogurt, lime juice, minced garlic, chopped cilantro, salt, and pepper. Adjust consistency with water.
Chop toppings: halve cherry tomatoes, slice red onion, chop herbs, and cut lime into wedges.
Assemble bowls with grains, beef, roasted veggies, warm beans, cheese, pumpkin seeds, cherry tomatoes, red onion, avocado, herbs, yogurt, and lime juice.
For meal prep, store components separately in airtight containers.