How big is that pot?
Here is a general direction, no exact amounts; you can adjust per size of the pot and your taste.
1. Onion diced
2. Carrots shredded or diced
3. Celery diced
4. Red bell pepper diced
5. Potato diced or cubed.
6. Garlic crushed
7. Peas frozen or canned
8. Cauliflower frozen or fresh florets
9. Brussels sprouts, I prefer frozen
10. I use butter, but olive oil is just as good
11. Seasoning of your choice
In the pot heat up the oil, add onion and sauté till just translucent add seasoning. Add bell peppers, celery, carrots, continue to sauté for about 3-5 minutes, add garlic and sauté for another 2-3 minutes.
Add your fake chicken stock or even plain water. Add potato. If you are using canned or frozen vegies then wait till potato is almost done and then add the rest of the vegies bring to boil, let it cook till thoroughly heated thru. If using fresh, I’d almost add at the same time as potato. When all done taste and check for seasoning. I like paprika and cayenne pepper, garlic salt and just a little bit of brown sugar. When soup is ready you can serve it as is, or put in blender and puréed. My wife doesn't like Brussels sprouts, but doesn’t mind as long as she cannot see it. Serve. I usually serve with some sour cream, but it is not necessary.
You are what you eat.