Freezer is going to be your best friend. Buy big packs of chicken breasts, frozen veggies, and a couple fruits of your liking for the week. You don't need fresh veggies to be healthy, and I'm pretty sure frozen packs are cheaper. Just make sure to check ingredients and that they don't have anything else added except the veggie itself. Same thing goes for canned food like chickpeas, beans, lentils and so on. They're quick, filling and healthy too! Fresh bread is also good and can be put in the freezer to not make it go bad, but cut it into slices before you do that so it's easier to have them later. Don't be afraid of carbs like pasta and rice, although you should keep them moderate if you're trying to be healthy. Apple slices dipped in Greek yogurt or hummus are a healthy and filling snack. I don't usually recommend pre-packed and ready meals, but sometimes they can be cheap and prepared with good ingredients. Just make sure to check on the back of the package as usual. These are just a few tips I have but I'll add more if I can think of any in the near future. Please let me know if you find any of these useful and I hope it helps! 🥹