I have to dig for my tortilla soup recipe...I got it off allrecipes.com. I like that site because you can read reivews from people who have made and modified the recipe. But I will get it.
As for veggie-tomato soup (btw, I cook like you do, the more natural the better...I get uppity about "having" to add sugar to cookie recipes. I'm a honey fanatic these days)...
Gather vegetables that tickle your pickle...I have celery, onions, garlic, cauliflower, carrots...frozen green beans, frozen peas, corn...whatever. Olive oil in a big pot, saute aromatics--onions, garlic, celery and spices. I like to use thyme and bay at least, sometimes a pinch of basil if I'm feeling saucy. Then I throw in chopped vegs, the ones that need to cook longer first or I just chop them smaller than the rest. Sautee until a little golden on the edges but not until cooked through. Splash of whorechestecshrire (I didn't even try to spell that right) if you like, splash of tabasco or the like if you want, healthy splash of wine if you want (though I wouldn't recommend wine and tabasco, but beer is good instead, too), let it reduce/cook down a minute or so. I usually do about a cup of chicken stock but it's still good if you don't want to add that. Then 3-4c tomatoes, I usually put in a quart jar full (I can my own) plus whatever I've got laying around that's about to turn. Bring to boil, reduce and simmer 10-15 mins until all is tender, adding S&P sometime during this whole cooking process...fresh parsely at the end if you have it, I never do.
I'm off to make something like that but adding hamburger for protein.
And yes, it is still hot here. SO WHAT?!
ETA: if you want something not so runny, before you start putting liquids in sprinkle a couple heaping tablespoons of flour in with your vegs and saute for a minute or two, then add in your liquids, it should thicken it up a bit. Make sure you have enough grease still in the pot, you might need to add a little oil, or, as I do, butta. But don't hard-boil it too long, watch that as soon as it boils, bring it down to a simmer, and stir it frequently, it should thicken up nicely for you. Oh--and if you added a soup-sized can of tomato sauce that would help to thicken it too. Or a big spoonful of tomato paste. Or before you eat it, a big spoonful of sour cream in your bowl.