Cook your base: Prepare brown rice, quinoa, or cauliflower rice according to package directions. Fluff, then stir in lime juice, cilantro, and a pinch of salt. Set aside to cool slightly.
Sauté aromatics: Warm a large skillet over medium heat.
Add olive oil if needed, then add diced onion. Cook 3–4 minutes until translucent. Stir in garlic and cook 30 seconds until fragrant.
Brown the beef: Add ground beef to the skillet.
Break it up with a spatula and cook until no pink remains, about 5–6 minutes. Spoon off excess fat if necessary.
Season it right: Sprinkle chili powder, cumin, smoked paprika, oregano, salt, black pepper, and red pepper flakes over the beef. Stir to coat evenly.
Add tomato paste and liquid: Mix in tomato paste, then pour in broth or water.
Simmer 2–3 minutes until saucy and well combined. Taste and adjust seasoning.
Prep toppings: While the beef simmers, rinse black beans, chop tomatoes and bell pepper, and portion corn. Shred lettuce or cabbage, but keep it separate for serving day.
Assemble meal prep bowls: Divide rice (or cauliflower rice) among 4 containers.
Top with seasoned beef, black beans, and corn. Add tomatoes and peppers to the side. Sprinkle a little cheese if using.
Cool before sealing: Let containers cool for about 15–20 minutes.
Then seal and refrigerate. Keep lettuce, avocado, salsa, and yogurt in separate containers to add fresh later.
Heat and finish: Reheat bowls in the microwave for 60–90 seconds, then top with shredded lettuce, avocado, a spoon of Greek yogurt, salsa, a squeeze of lime, and hot sauce if you like heat.