I am feeding myself, DH and DD (age 10 1/2) - they eat most of what I eat and then I add to that carby side dishes.
Each week I purchase for my Low carb eating and as the basis of our main meal together (dinner) the following (varies but this is a pretty typical week):
Meat:
1 large pack of chicken thighs - contains 10 - 12 thighs (which I roast on Sunday and use for snacks, lunches, and a super fast dinner on Mondays when I am running home to pick up DD and take her to Girl Scouts within half hour of getting home!)
1 regular cut up fryer chicken (Sunday or Saturday dinner)
1 roast (Saturday or Sunday dinner and one more meal as a leftover)
2 packages of hamburger (taco salads on one evening... a hamburger without the bun on another)
1 pkg of pork chops
1 pkg of bratwurst sausages and good saurkraut
2 pkgs of Bacon for breakfasts
Fresh veggies:
Sliced mushrooms
Romaine lettuce
Already diced packs of green/red/yellow peppers and a similar pack of diced onions
several tomatoes
several fresh zuchinni (stirfried in olive oil with some diced tomatoe and freshly grated parmesan - YUM!)
LOTS of brocolli crowns (a bag filled to the brim)
about a pound of fresh green beans OR brussel sprouts (what ever looks best)
pack of celery hearts
Several cucumbers
Dairy:
1 pint of heavy cream
2 dozen eggs
1 tub of challenge WHIPPED butter
1 carton of regular cube butter if running low
1 small carton of sour cream
2 gallons of whole milk for the rest of my family
1 lb of grated sharp cheddar cheese
1 lb of sliced mixed cheeses (hard cheeses)
1 lb of grated fresh parmesan if running low... lasts along time
1 8 ounce cube of whole cream cheese
Freezer:
Tyson grilled chicken strips (make great ceasar salads for my lunches)
Other "inner" aisle items:
1 pack of bottled water to take for my lunch each day
1 can of artichoke hearts in brine (awesome on salads)
2 cans of black olives (snacks)
1 bag of whole raw almonds if I am running low
Canned White Chicken meat to make chicken salad for lunches and snacks
MAYO if low
Salad Dressings if low
Those are the things I consistently purchase. Obviously, I vary the menu each week... but these are pretty much staples.