This makes 1-2 meals. Put 1/4 cup lentils in the bottom of a baking dish. Cut up whatever veggies you have that seem like they would be good. Today I used onion, beet, and kohlrabi. Tomorrow I'll do those plus eggplant. Add 1 cup water.
Top with foil. Bake at 375 for 1 hour 15 minutes (including oven heating up). Let cool. stir, serve or save for tomorrow.
If you have beans already cooked, you can forget the lentils and add the beans afterwards. I also cook up greens and onions, and have those on the side.