We shop big every other Friday and Saturday (after payday). We go to the store every three or four days through the rest of the two weeks for fresh produce, milk, eggs, and bread. I have a master breakfast list and a master lunch list. Each two weeks, I put a star by the meals we have the ingredients for and then we can flex depending on what's going on, who is cooking, and how much time we have.
I plan our dinners more carefully, assigning at least a main dish to each evening (sometimes sides too, if I think it matters that night), trying to take into account the ebb and flow of our week. For example: we try to make Thursdays an easy meal since it's getting toward the end of the week and we're all running low on energy by then. We also take into account different activities (fortunately, none are weekly; most are bi-weekly or monthly). All this is in a Pages document that I print out and post on the fridge, with another to go into my calendar.
Sat: pizza (homemade)
Sun: we girls had our tea party and the boys were out at other parties, so we didn't plan anything
Mon: beef stew and biscuits (except that we've got the flu making the rounds, so we're making a run for the Border instead and we'll bump this to tomorrow since the meat was already defrosted (it's cooking now) - something else on this list will get bumped to next pay period.)
Tues: chili, cornbread, salad
Wed: French dip, carrot sticks (I'm going to try to make this from scratch instead of buying deli beef.)
Thurs: flat iron steak pitas (kind of a pita/fajita tweak, more Greek than Mexican)
Fri: croques monsieur (Drew and I may be out on a date night and this is pretty easy for the kids to make.)
Sat: pizza (homemade, natch!)
Sun: turkey, stuffing, asparagus (The turkey was free at Thanksgiving and tucked into the freezer; I'll use leftovers later in the week and the rest of the meat will be used as lunch or dinner next pay period for one of our favorite easy meals that my Mémère Bert used to make, chicken sauce (pronounced the French way: the au has a long o sound), and I'll boil up the carcass for more turkey broth for the freezer)
Mon: stir fry chicken (or turkey) w/veggies and homemade teriyaki sauce
Tues: acorn squash soup & blt's
Wed: turkey pot pie (made from turkey leftovers)