Meal planning is overwhelming to me, so I made a habit of rotating a selection of staple meals with fewer, more stable ingredients. PB or eggs scrambled with cheese on toast for a breakfast. A salad of chickpeas, carrot, broccoli and avocado with a whole-wheat roll, or a lentil/rice bowl, for lunch. Precook larger batches of freezer-friendly staples like chickpeas, lentils, rice, turkey burgers, meatloaf, tomato gravy - reserve 2-3 days' supply and freeze portioned batches of the rest. Allow yourself less experimental ingredient buys per grocery run - so if it turns out they don't synergize with your staples, you're not accumuating a lot of dead-end ingredients.

Freeze your fresh bread and only defrost the amount that you're going to eat.

I cook the food

I found that visitng shop frequently and buying a little each time helps with this. Also, knowing what you have and planning what to cook with stock in mind. Also, one might find better to buy at small grocery stores (turkish in my area). These have ability to buy as an example 10 or less potatoes instead of fixed 2.5kg of potatoes. That way you're not bound to swiftly eat potatoes before they rot.

Be organized, have a weekly menu. I'm sorry this is the solution. My bad.

I buy stuff that lasts. For bread, I find that rye takes weeks longer than white or wheat to start going bad, and bagels last ages too. I make smoothies with mostly frozen fruit. For dinner stuff, if I'm not feeling like cooking I either buy things I'm going to eat in the next few days or I get these sealed precooked things from Aldi that are great and keep well. Coconut milk also tends to keep better than cow milk and lately I've realized I greatly prefer it.

About the only things that are super perishable that I keep around are bananas and avocados, and I just tend to eat these a lot. I also keep spinach or kale around for my smoothies, but I rebag them into separate smaller bags as soon as I get them. If my bananas are getting overripe, they get frozen for smoothies.

I also tend to buy canned soups, which last ages.

When I was cooking regularly I'd make a lot of chilis and pasta sauces. They're good to freeze and they keep well on their own. Chili is arguably better after freezing and having more time to develop.

You can definitely eat pretty healthy and keep plenty of food in the house without constantly chasing waste.

with pen and paper

I got a chest freezer for $200. I freeze everything before or on its expiration date.

Sometimes if its mushy veggies I make a stock and freeze it for the next meal. If its too far gone i have a compost jar in the kitchen and a bin outside.

I started a garden and an edible native hedge this year. I have tea herbs and squash for free now and working on a seed propagation.

I started a coop mushroom grow with my neighbors since he felled some hardwood and I had the plan. The leftover mushrooms we dont eat will be either sold at market or made into liquid cultures.

Were talking about going in on a local half cow or pig. He says if my garden keeps growing we can buy the plot behind us together and start a farm. Would cut grocery costs a lot.

My wife and I have pantry weeks where we dont go grocery shopping, we eat whats in reserve, soak dry beans, thaw last weeks on sale chicken breast and pressure Cook em, make a flatbread and have some curry.

Instant pot helps too. Thinking about getting coturnix quail to feed good scraps to and get eggs out of. I can plant cover crops for em on the last strip of lawn I have.

It doesn't have to be wasteful forever.

Use a software/app to meal plane. (Mealie/Tandoor) You pick the recipes you fancy for the days/week/whatever period. It generates a grocery list containing exactly what is needed for the meals you chose, nothing else.

I haven't thrown away anything in a couple years now. Oh and freeze leftovers if needed.

A freezer and a pantry full of canned and dried foods.

Only buy fresh meats and veggies when you are actually gonna cook.

Freeze leftovers in single portion sizes.

Eventually you’ll have a bunch of homemade frozen dinners to choose from.

I had this issue with produce. I stopped buying it because it would just go bad before I used it.

Please don't waste food.

My problem isn't that I don't use what I buy, the problem is that I buy too much. Like the recipe I need calls for one stalk of celery, but I can only buy an entire celery plant, like 11 stalks in a bundle because that's all the store offers. What do I do with the remaining 10 stalks?

It's not for everyone, or even most people probably, but I deal with it by buying virtually the same thing every week, once a week. No impulse buying. So, I eat everything I buy, every week, because I know exactly how much I eat for each meal, each week. I waste nothing. I don't need a list, I know the path through the store I will take, and I'm in and out in about 20 minutes, including checkout.

I decided to stop thinking about food as entertainment or reward, and now think of food as only nutrition (as much as I can, it's not easy, but that's the idea.)

i dont, my family always buys too much food regardkess to how many times i tell them to not

I'll only buy something perishable when I need it. I tend to cook for 3-4 days in one go in order to make cooking for only myself somewhat economical. I tend to visit the supermarket every other day so I don't really have to plan too much.