Cheesy Chicken Casserole

Pat chicken dry with a paper towel and cut into 1-inch pieces. Heat a large drizzle of oil in a large pan over medium-high heat (use an ovenproof, lidded pan if you have one). Add chicken and season with salt and pepper. Cook, tossing often, until browned all over, about 5 minutes. Remove from pan and set aside on a plate.

Add another drizzle of oil and 2 TBSP butter to same pan over medium-high heat. Toss in onion, scallion whites, and Italian seasoning. Cook, tossing, until onion is softened, 2-3 minutes. Squeeze in juice from lemon half and scrape up any browned bits from bottom of pan.

Stir stock concentrate, demi-glace, and 1 cup water into pan. Add milk and bring to a boil, then season with salt and pepper. Stir in rice and tomato. Lower heat and reduce to a simmer. Stir in chicken along with any resting juices on plate, making sure to keep rice submerged. TIP: If your pan is not ovenproof, transfer mixture in pan to a large baking dish at this point.

Arrange broccoli on top of contents of pan or dish, pressing down gently to partially submerge florets. Cover pan tightly with a lid or aluminum foil and transfer to top rack of oven. Bake in oven until rice is just al dente and chicken is cooked through, about 15 minutes. (TIP: It’s OK if the rice on top looks dry—it will continue to cook.) Remove pan from oven and heat broiler to high or increase oven temperature to 500 degrees.