When cooking and meal prepping for one or even two people, your freezer is your best friend. Many plant-based proteins and whole grains can easily be frozen.  Also, pay attention to the recipes you are cooking and when possible choose dishes that reheat easily. You can also cut recipes in half or cook casseroles in small or individual-sized dishes in order to save the additional portions for another time. One strategy is to also look for ingredients that you can repurpose and use to prepare two completely different meals. An example is to prepare beans and use them as the protein for a meal of beans and rice and then to use the remaining beans to make wraps or tacos later in the week.