Pro tip, make the premade stuff. Make like a gallon of pasta sauce and freeze/can it all. Make like 5 pounds of meatballs and freeze them.

I like to make my pasta sauce when I can, from tomatoes. If you are a fast chopper, it goes by really quickly. Super thin slice it, add some diced enough, maybe some shredded carrot and celery, add some crushed garlic, salt, pepper and some seasonings. In around an hour or so you will have made a bunch of it.

Also look for professional advice for canning, cause idk if my way is the safest. I boil some water in the can in the microwave, dump it then add the pasta sauce, and close it really tight with an oven mitt.

I also grind my own meat, with just a knife. Dice the meat into small cubes and mince it for a while. I do it until it can form a cohesive meatball. Also consider what you'll use it for, if its just being tossed in a bolognese sauce, it doesn't need to be so fine.

You can make pizzas ahead of time too, roll the dough, add marinara, mozzarella and wrap it in foil and put it in the freezer.

I make my own stock too. I'll collect bones and veggie scraps in a freezer bag, and when it's full, I dump it in a slow cooker, set it and forget it. The store bought stuff is basically just water. If it's tasteless, it's baseless.

I've also frozen lasagna portions too, fully cooked. If raw its impossible to cook them without completely de-thawing them.

I also have a box of instant cake batter I mixed together myself. It's like a year old but it's still not terrible!