Fry diced onions in olive oil on medium heat until there's some browning, 5-10 min.
Add finely chopped garlic and spices, fry for 1 min.
Add the cans of tomatoes, beans, and corn with their liquids. Add some salt.
Add another ½ cup of water, taste and add more salt and spices. Bring to a boil.
Turn off the heat, stir in the cousous, and cover. Let sit for 5 min.
Enjoy with some shredded cheese if you have any!