Planning and prepping meals for the week is a great way to guarantee that you have a nutritious  option instead of grabbing something unhealthy on the go during your busy day.

Because different foods have varying windows of freshness, you want to consider this when  prepping your meals. For instance, if cut vegetables like onions and peppers are stored in  airtight containers, they should keep for around three days, whereas, heartier chopped  vegetables, like carrots, radishes, and winter squash will keep for a week.

Cooked foods, including vegetables, grains, and dishes containing meat, or eggs should be  consumed within three to four days.

Soups, chilis, casseroles, and cooked grains can also be frozen for up to six months for future  meals.

The Food and Drug Administration (FDA) has this great refrigerator and freezer chart that lists  the ideal storage window for the freshest foods:

https://www.fda.gov/downloads/Food/FoodborneIllnessContaminants/ucm109315.pdf