Chicken Thighs with Lentils and Mushrooms

Prepare this recipe in 1 pot. 2 portions

4 oz. any dry lentil,
1 lb. 10 oz. bone in, no skin, 4.5 oz. onion,
2 T. fresh garlic,
1 tsp. smoked paprika,
1 tsp. dry oregano,
2 T. tomato paste,
2 c. chicken broth,
4.5 oz white mushrooms,
2/3 c. scallions,
1/2 stick any butter. Cost $5.38