Heat olive oil in a large skillet over medium heat. Add chopped onion and minced garlic, sauté until fragrant. Add ground beef, breaking it apart. Cook until browned and drain excess fat. Season with cumin, paprika, salt, and pepper.

Rinse the rice under cold water. In a pot, combine rice and water, bring to a boil. Reduce heat, cover, and simmer until the rice is cooked and water is absorbed.

In a separate pot, heat the black beans and corn over low heat until warm.

Begin with a layer of cooked rice at the base of each bowl. Add a portion of seasoned ground beef, followed by black beans, corn, and diced bell pepper. Top with your choice of shredded cheese, sour cream, avocado, and fresh cilantro.

Serve immediately while hot. Accompany with lime wedges for a zesty touch and a side of tortilla chips if desired.

Place leftover components in airtight containers. Store in the refrigerator for up to 3 days. Keep toppings separate to preserve freshness.

Reheat main components in the microwave or on the stove. Add fresh toppings after warming to maintain texture and flavor.