Personally, I like to prep veggies and/or legumes that can easily be dressed up and added to something else for a well balance meal.
Ex: carrots, broccoli, peas - you can get these canned or frozen, throw them in a skillet with a healthy oil (I am partial to olive oil) and cook off the liquid.
Later you can throw those on some pasta (I usually eat protein pasta or legume based pasta) with some salt, garlic powder, and some extra oil. You could also add red sauce.
You could also add some of the mix to lack brand of kidney beans and then throw them in a tortilla to make a burrito, or just put it in a bowl, add some hot sauce and/or salsa, and avocado if you like for a “taco bowl” and you can throw some tortilla chips on top.
My favorite thing to do with the veggie mix is add it to past and then mix a can of low sodium campbells mushroom soup along with some garlic salt and have it like an Alfredo. It’s the best!
I also keep some healthy frozen dinners on hand and pop those out on a plate while they’re still frozen and add a cup or two of frozen veggies before heating it up.
Hope that helps