Can I use canned lentils for this recipe?

While I have not made this recipe using canned lentils, they should swap in just fine for this recipe! Simply drain and set aside while you sauté the vegetables.

Can I freeze vegan sloppy joes?

Lentil sloppy joe filling stores well in an airtight container in the fridge, lasting for about 4 days in an airtight container. You can also freeze it. I recommend freezing the filling in single-serve portions for easy reheating. You can do this in smaller freezer-safe containers or use a portioned container such as Souper Cubes. To thaw, place in the refrigerator overnight, or pop out into a small saucepan and heat slowly over medium-low until warmed through.