Prepare all the vegetables as indicated in parenthesis - peel, slice or chop everything, except for the frozen veggies. If you’re using fresh green peas, green beans and/pr broccoli, prepare those as well.
Add everything into the skillet except for the tomato puree, salt and spices. Also add a bit of water but not too much (you’ll add more water later, as it evaporates).
Cook over medium heat, making sure to add more water as it evaporates. Use a spatula to stir from time to time, making sure that the vegetables won’t stick to the skillet. Cook until vegetables become tender (test them using a fork).
Once the vegetables are cooked, it’s time to add salt, spices, and tomato puree. Use a spatula again to incorporate these into the stew.
Bring to a simmer and cook until almost all the water from the skillet has evaporated and a thick sauce has formed. Don’t forget to taste and make sure you like how the stew tastes (season again if needed).
Once vegetables are cooked, the stew is thick and it tastes as you want it, set aside to cool down for a few minutes.
That’s it! Enjoy this vegetable stew on its own or with different extras.