Black bean, rice and corn burrito bowl with fresh tomato, avocado and lime

Cook rice with vege stock cube dissolved in the water.
Meanwhile, heat olive oil in a pan over medium heat and add brown onion and garlic. Sauté until turning translucent and starting to brown.
Add black beans, corn, spices, and a little water. Cook until heated through, then turn off the heat.
Dice avocado and mix with coarsely chopped coriander, juice of 1 lime, and red onion if desired in a small bowl. Season to taste.
Dice tomato and season to taste.
When rice is ready, add black bean mixture and juice of 1 lime, then season to taste. If necessary leave on the heat, stirring, until heated through.
Divide rice and black bean mixture, avocado salsa, and diced tomato between 2-3 plates. Enjoy!