My tomato soup isn't lumpy but absolutely delicious, (even if I do say so myself, you could just go easy on the blender or throw in a few tinned tomatoes after blending.)
Fresh tomatoes (expensive ones might be nicer but I do cheap so Salad Tomatoes, I also use about 3-4 bags)
Peppers
Mushrooms (lots of them, it gives an awesome flavour)
Onions
Fresh Garlic (slice it)
Put all of the above on a tray, spray with light oil, or cover in butter depending on fat content, sprinkle with Basil, and mixed herbs.
When these are baked, put in pot with Passatta, tinned tomaotes, worcester sauce, more herbs and basil, and I use the bottle of stock and hot water, about 1-1.5 lires depending on size of pot.
Bring to boil and let simmer
Add a few drops of tabasco for kick, and either a teaspoon of sugar or sweetener
Let simmer for another 10 minutes
Blitz with hand blender, adjust herbs for taste
strain
serve/freeze
If you want it a bit thicker you could add a potato or 2 but I don't usually, and you could add cream for taste also when serving.