Heat oil in a skillet over high heat. Add garlic and onion, cook for 2 minutes until onion is lightly browned.
Add beef and cook, breaking it up as you go, until it turns from red to brown.
Add Taco Seasoning (or use 1 packet store bought) and cook for 1 minute.
Then add tomato paste and water, cook for 3 minutes until the water is mostly evaporated but the beef is still juicy, not dried out.
Set aside to cool for 10 minutes – piping hot filling will steam the burrito, making the tortilla soggy.
Optional: If not warming rolled burrito, warm the tortillas before rolling (per packet directions).
Place a burrito on a work surface. Place 1/4 – 1/3 cup of rice just below the centre.
Top with 1/4 – 1/3 cup beef, then some lettuce, corn, black beans, tomato, a sprinkle of red onion, coriander and cheese.
Fold up the bottom to cover the filling, then fold the edges in
Roll up tightly, then wrap in foil. Serve as is or heat per below.
HEATING: To warm through, pan fry (dry pan) in the foil over medium high heat on a burner for a few minutes on each side to slightly crisp and warm the outside.
Turn off the burner/ stove when done.