I'd just start by making a big master list of all the meals you like, don't mind fixing, etc. Even if you don't end up meal planning, this'll be helpful to refer to for inspiration later on. Just open up a Word doc or keep a notepad handy, and write 'em down as you think of them over the course of a week or so. You might want to think about doing some freezer cooking too, that would help in terms of not having to go to the store as often; you could make a huge stock-up run, then cook everything up and freeze it. Maybe that would be less odious than having to think about meals every day or every week? There are lots of once-a-month-cooking websites out there, although most are not vegetarian. So the best idea is probably to start with what you like to eat and adapt it for bulk/freezer cooking. OR, if you have your master list, you can look at it and "group" your meals, so you can get all the ingredients for a certain number of meals at once, and not have to keep running back to the store or, worse (IMO) buying a lot of ingredients that then go to waste b/c you don't use them all quickly enough, kwim?
For lunches, eat leftovers from dinner, or start a list of lunches that are easy and good that you can rotate through each week (sandwiches, soups, veggies w/dip, etc.). Same for breakfasts. You could do, say, hot cereal one day, bagels the next, fruit and yogurt the day after, then eggs (if you eat them), then peanut butter toast, then granola, then muffins. Or whatever.
Another idea I've seen/heard is to do a theme for each night of the week (I'm back to dinners here, sorry if I'm jumping around here, I'm trying to get all my ideas typed out before I forget 'em!). Say, Monday is Mexican, Tuesday night is big salads, Wednesday pasta, Thursday stirfry, Friday pizza, Saturday takeout, Sunday soups. Or whatever you like, you get the idea. That way there is still room for variation but at least it limits the scope of what you have to plan, you know? So you're not totally overwhelmed by the choices. Even if you only have four different Mexican-style meals -- say, black bean burritos, cheese enchiladas, pinto beans and rice, veggie quesadillas -- that's a month's worth of Mondays and you only get each of those meals once a month, so you don't burn out.
Is any of this helpful? I know I haven't answered your question about the fresh food but I hope I've approached it in a roundabout way. we belong to a CSA, which might be a good option for you too. Or -- here's another thought -- my DP takes DS to the farmer's market almost every Saturday. It's their little outing, adn they get a treat for breakfast, and they stock up the house w/fruits and veggies for cheap. Maybe your family could implement something like that?
Good luck!
