I second the big freezer idea! Mine is stuffed full of garden veggies, meat, some overstocks of clearance items, and bags of premade meals.
When I make soups or casseroles (which is often) I make a big pot/dish and put away several portions of it for later, which saves money and effort.
Whenever I need to, I can get a meal out of the freezer and dinner is served!
Speaking of stocking up... I also have the big delux dehydrator. It is amazing what type of veggies you can dry and they last a long time. My Swiss Chard grew like weeds last year and instead of letting the overflow go to waste, I dried it all. I had so much I gave tons of it away and still have enough for several years and can devote that space to something else in the garden this year. Same with tomatoes. I don't have to even grow any this year.
Gotta love bumper crop years.