Your shopping list

Microwaveable porridge sachets
Eggs
Skimmed milk
Spinach
Peppers
Sweetcorn
Onions
Apples
Tinned tomatoes
Mushrooms
Carrots
Salads leaves
Lean minced beef
Turkey mince
Chicken
Quinoa
Brown rice
Tinned fruit in juice
Ryvita
Yoghurt
Homemade "fatless" sponge cake
Air dried apple and pear crisps
Almonds
Popchips

On my way to the grocery in a few minutes actually...

Chicken
Beef Tenderloin
Hamburger
Salmon
White Fish (not sure what I'm going for today)
Shrimp
Canned Tuna
Eggs
Milk
Broccoli
Spinach
Cabbage
Green Beans
Brussels Sprouts
Carrots
Radish
Cucumber
Onions
Garlic
Cilantro
Jalapenos
Roma Tomatoes
Grape Tomatoes
Avocados
Apples
Strawberries
Blueberries
Blackberries
Raspberries
Bananas
Almonds
Olive Oil
Kalamata Olives
Farro
Quinoa
Wild Rice
Potatoes
Black Beans
Corn Tortillas

BTW, you can eat healthy and awesome food...no need for it to be boring and stale. You can eat more than just celery sticks and whatnot. Your diet (noun) should be sustainable, not something you start and then stop.

I always get fresh veggies and fruits first, the lean meats, chicken, pork and steak. I get very little pasta and prepared sauces. Some canned veggies like green beans and nouthern beans. Dry beans-cranberry beans!! Nummy!! eggs low-fat cheese, yogurt, plain quick cook oatmeal, special k cereal. Turkey bacon, Greek yogurt, whole wheat bread and sandwich rounds. Lite cool whip, frozen fruit and veg. Light mayo, avocados!! Snackwell cookies, Boca burgers or morningstar burgers!! Salad dressings, nuts, granola, almond coconut milk.sunflower seeds or trail mix. Lol probably more

i am a vegetarian, so hopefully that does not make too much a difference. you can always sub meat though in place of meatless things like fake meat grounds, seitan, fake chicjen strips, tofu etc. i would think that good things for meat eaters to have in the freezer prolly are lean meats like chicken, or have fish around like salmon, tuna etc to use instead.
so here is what i always get at the grocery store, it varies by what is on sale but this is my current list for when i go next week:

bakery:
bagel thins (whole wheat)
english muffins (whole grain)
sandwich thins (whole wheat)
whole grain bread
whole grain or low carb tortillas

beverages:
coconut milk
vitamin water zero
zevia (natural 0 cal soda)

breakfast:
42 oz canister of quick oats
life cereal
nature valley granola bars (trail mix and nuts)

canned/packaged:
veggie broth (to make soups, too much sodium in the cans)
unsweetened applesauce
bags of dry beans: black beans, chick peas, kidney beans
protein powder (chocolate and vanilla)
pb2 or real pb
apple butter
diced tomatos
tomato paste
enchilada sauce
taco seasoning
spices (oregano, garlic pwoder, onion powder, chili powder, cumin, cayenne, sage, ccloves, cilanto, pumpkin pie spice, cinnamon)
low sodium spaghetti sauce (or make your own with diced tomatos and tomato paste, or roast red peppers and make a sauce with that)
spaghetti, ziti, penne, bow ties, other pasta (whole grain)
quinoa
rice
wheat gluten (to make seitan)

condiments/sauces:
mild salsa (or i make my own in my ninja chopper - dice tomatos, onion, cilantro, peppers, add tomato paste if too runny)
fat free ranch/honey mustard dressings

dairy:
sliced white american, provolone, swiss cheeses
greek yogurt (whatever brand is on sale)
low fat cottage cheese
low fat sour cream
light laughing cow cheese wedges
fat free cream cheese
ricotta

frozen:
boca meatless crumbles
quorn meatless chicken tenders, veg burgers
frozen yogurt
cheese tortellini
raviolli
pierogi
frozen veg (spinach, pepper onion mix, broccoli, asparagus, edamame, stir fry mix, soup mix)

international:
shirataki noodles

meat/seafood (for my fiance):
chicken sausage
brats
deli turkey breast and ham

produce:
avocado
apples
pears
blueberries
melon
grapes
mushrooms
eggplant
cabbage
spaghetti squash
potatos
cucumbers
zucchini
romaine lettuce
baby spinach
red/yellow bell peppers
red onion
carrots
celery
tofu

snacks:
roasted unsalted sunflower seeds/nuts
white rice corn puffs
plain popcorn
rice cakes (multi grain and apple cinnamon)
triscuits
wheat thins
hummus (roasted garlic and red pepper)

breakfasts:
eggs or egg whites on a bagel thin with non fat cream cheese, red onion and lettuce
quick oats with various things mixed in: applesauce and cinnamon ("apple pie" oatmeal), vanilla protein powder, pumpkin puree and pumpkin pie spice, chocolate protein powder and pb2
life cereal with coconut milk
cheerios with coconut milk and a banana
sandwich thin or bagel thin with pb2 and banana
sandwich thin or bagel thin with non fat cream cheese and apple butter

snacks:
various fruits, mix plain greek yogurt with honey for a fruit dip
rice cake with apple butter
an apple warmed in the microwave with cinnamon
pb & banana
wheat thins and hummus
veg with hummus

dinner:
slow cooker soup (veg broth with diced tomato, cabbage, potatos, carrots, celery, onion, sometimes beans. cook on low 8 hours)
stroganoff over egg noodles or shirataki noodles
shirataki vegetable stir fry with a protein
stuffed shells with spinach
baked ziti with spinach
meatless cutlets with sauce over pasta
enchiladas
taco salad
spaghetti squash "lasagna"
tortellini salad
seitan "cheese steak" sandwich
quinoa risotto
pizzadilla
eggplant parm
sushi bowls
chickpea cutlets
chickpea soup
lasagna using zucchini as the noodles
pierogi with veg
greek salad

There are some great websites with interesting, lower calorie/fat recipes. One of my favorites is www.skinnytaste.com, but I know that there are more. Find some things that sound interesting and get what you need.

As for some of my staples, cottage cheese (protein), almonds (protein), tuna, salad fixings (whatever you like), light salad dressing, avocados, boneless skinless chicken (I prefer thighs), frozen veggies, whatever berry is on sale, oatmeal (for ease I also use betteroats instant oatmeal with flax seed), light cream cheese, cheddar cheese (I like to make the light version buffalo chicken dip every other week or so), apples, light yogurt, fresh spinach (can be added into lots of dishes and is nutritious, love in salads too), grapes, bananas for smoothies (freeze first), salsa, ground turkey (love to make taco salad and I use ground turkey), clementines...really whatever fruit and veggies are on sale that week.

I actually am less bored with food than ever before because I am trying new veggies and combos. It really doesn't have to be boring at all! I am avoiding most processed foods and breads/pasta just to be able to eat more and still fall within my calorie allotment, but that's just my choice. Look around on this forum, you'll find lots of recipe ideas and links to blogs with great ideas. Also, Sparkpeople has a great recipe section. Good luck, you can do this

Ground beef
Ground Turkey
Ground pork
Ground chicken

Frozen breaded chicken strips
Frozen boneless chicken strips

Frozen mixed vegetables
Frozen sweet corn

Rice brown/white

bump