In a skillet, brown the ground beef over medium heat until fully cooked.
Drain excess fat from the skillet.
Add taco seasoning to the beef and mix well with water according to the package instructions.
Allow the mixture to simmer for about 5 minutes, stirring occasionally.
While the beef is cooking, prepare the cooked rice in a separate pot if not already done.
Once the beef is ready, layer the rice in serving bowls.
Top the rice with the seasoned beef mixture evenly.
Add shredded lettuce and diced tomatoes on top of the beef.
Sprinkle shredded cheese over the entire dish.
Finish with a drizzle of sour cream, sliced avocado, and fresh cilantro. Serve with lime wedges on the side.