Do some soup or a big casserole.
Soup :
Diced Onion, potato (could be sweet potato) carrot, one clove of garlic, Celery, saute in butter for ten mins. Add two big handfuls of red lentils. Top pan up with water, about half an inch above the veg. Squirt of chicken stock. Bay leaf. Simmer for twenty mins. Remove Bay leaf, blend. Add salt and pepper.
Can replace the water with a tin of coconut milk or tinned tomatoes and then refill the tin with water and add to pan also. You could add some spice to funk it up, or some diced ham, chicken, bacon.
If you want a casserole, follow the above steps but add some chicken fillets that have been halved horizontally and tossed in seasoned flour. Fry these after you have fried the veg for ten mins, make sure you remove veg from pan, fry the chicken, return veg to pan with chicken, then add the liquid. Don't blend, just keep it chunky if you want casserole. I'd serve this with mash or on its own, or with buttered baguette.