Cut off the stem of each Brussel sprout. Peel one layer of its leaves. Rinse.
Peel and chop an onion. If available you can replace 1 onion with 10-15 shallots. You do not need to cut the shallots.
Peel and cut the onion to dices. Peel and cut the potato into cubes.
If mushrooms are large, cut to half or quarters after cleaning.
Heat your pot slightly. Add 3 tablespoons of olive oil. Then add the chopped onion. Cook, while stirring occasionally until translucent.
Then add 2-4 chopped garlic cloves, stir.
Then add a tablespoon of red tomato paste, stir.
Then add first the Brussel sprouts and then the carrots,and then the potato and finally the mushroom. Mix between the new additions.
Add the spices and mix again.
Finally add warm water enough to cover the bottom if using a pressure cooker or up to the middle if using a normal pot.
Cook until vegetables are soft enough to serve. Serve while warm.