Pateks or the one that says something like "Seeds of Change" (some hippy sounding name) are the curry pastes/sauce I use usually. Sainsbury's Taste the Difference sauces are pretty good. I usually buy prepared pesto at least once a month or so, although if my basil comes in well enough in our herb garden, I want to make my own.
I love Sainsbury's organic carrot and coriander soup. I do add a dollop of butter to it though.
Outside the canned and jar aisles, I love frozen herbs, although you do have to check them if you have allergies. Some contain gluten and other things. It's really convenient to keep some on hand in the freezer though. I also love Waitrose's grilled Mediterranean veg pack. A lot cheaper than buying aubergines, courgettes and peppers in the off season (and probably more nutrients/fresher as well).
I agree on the Dr. Oetker pizzas, but I usually make "homemade" from French bread. I would love suggestions on the sauce, because I've not found one yet that tastes all that great. When we are having pasta, lasagne, or I have a need for a red sauce, I usually make my own after a few really bad experiences. Last week when I made French bread pizzas, I used a Gordon Ramsey sauce that tasted a bit middle eastern. It might be nice on rice or pasta, but it wasn't good at all on pizza.