As far as food, it really depends on your diet. We usually only cook from scratch so our fridge is stocked with lots of fresh produce. I am really not into eating pre-made or pre-prepared anything, so this means I have to hit the grocery store more frequently. All of our proteins (chicken, steak, fish, etc.) usually go in the freezer unless I plan on preparing them within a few days. Some things that we ALWAYS have in our fridge/ cupboards/ pantry:
milk, half n half, mayo, eggs, ketchup, hot sauce, soy sauce, mustards (Dijon, etc.), Worcestershire sauce, salsa, feta cheese, cottage cheese, sour cream, butter, pickles, peanut butter, jelly, bread, deli turkey, sliced cheese, pickle relish, salad dressing(I do home made), canned tuna, and all the fresh fruits and veggies we like. Also, I always have bags of red and yellow onions and garlic in the pantry, as well as bags of russet and sweet potatoes.
Dry items: coffee, tea, cereal, oatmeal, nuts and dried fruit, popcorn, pasta, rice, quinoa, white sugar, brown sugar, confectioners sugar, cocoa powder, flour, baking soda, baking powder, corn starch, corn meal, salt, pepper, vanilla extract, paprika, ground cayenne, bay leafs, garlic powder, onion powder, chili powder, dill weed, nutmeg, ground tyme, dried oregano; parsley; and basil, red pepper flakes, allspice, cream of tartar, cumin, cinnamon, bouillon (beef and chicken).
Other stuff: honey, maple syrup, croutons, oils (olive, canola, coconut, etc), vinegars (white, apple cider, red wine, etc.), and non-stick spray.
Freezer: I always have steak, chicken, some type of fish, ground turkey and/or organic ground beef ready to thaw out. I also have a few bags of frozen veggies (usually spinach, kale, broccoli) on hand.
For drinks we mostly have bottled water but also keep a case of regular coke and Sam Adams (or whichever other beer my Fiance picks up) in the pantry for when we have people over. We aren’t drinkers but we have a small cabinet with a few bottles of rum, etc. for company as well.
These are all of my staples. I can honestly say that I keep all of these items in my kitchen at all times. Whenever something is low, I put it on my shopping list to replenish before it runs out. I cook (and bake) a lot, so it makes it so much easier to have all the basics handy. This may seem like a lot since you’re just starting out on your own, but you will get the flow of what works best for you once you get into the groove of things with your own cooking style. It was about 15 years ago when I got my first apartment and I remember being in your position. The first shopping trip will probably be pretty expensive, having to get so much of the expensive stuff all at once. However, once you have all the condiments, spices, etc., they last for quite a long time!
Congrats on your marriage and first place together. What an exciting time 😊.