Salads are just chopped vegetables.
Soups, chili, or anything watery can be made in bulk and then frozen in quart baggies (or other size-of-use) container.
Keep stuff like humus and peanut butter around so you can have a semi-healthy snack in a hurry.
Tofu is fully cooked already - just drain and (optional) season and (optional) heat. Chop, brush with oil and toss it in the air fryer, then heat up some frozen broccoli while you’re waiting. Bit of soy sauce and garlic and that’s a meal.
Keep easy precursors around. Refried beans, tortilla shells, and frozen fajita mix. Buncha beans, onions, and tomato paste for no-shop chili. Curry mix, dried mushrooms, and frozen tofu. You get the idea. Then whenever you get to the store you can make something that needs fresh ingredients - say a white bean and mirepoix soup that you can make an entire crockpot of and freeze.
You are letting the tiger into the kindergarten as long as it pinky swears not to eat any children. This is a terrible idea that will harm people.