Preheat your oven to 375°F (190°C).
In a skillet, heat olive oil over medium-high heat. Add the chicken chunks, season with salt and pepper, and cook until golden on all sides, about 8 minutes. Remove from heat and set aside.
2 lbs bone-in, skinless chicken thighs
In a mixing bowl, toss sliced apples and chopped sage with a drizzle of olive oil and a pinch of salt. Spread the mixture out on the bottom of your baking dish.
2 lbs bone-in, skinless chicken thighs
Layer the browned chicken pieces over the apple and sage mixture.
2 lbs bone-in, skinless chicken thighs
Pour heavy cream evenly over the assembled ingredients, then sprinkle shredded cheese on top.
2 lbs bone-in, skinless chicken thighs
In a small bowl, combine Panko breadcrumbs with a tablespoon of olive oil and a pinch of salt. Spread the breadcrumb mixture evenly over the top of the casserole.
2 lbs bone-in, skinless chicken thighs
Place the baking dish in the preheated oven and bake for about 35-40 minutes, until the top is golden brown and bubbling around the edges.
Remove the casserole from the oven and let it rest for 5 minutes; this helps the sauce thicken slightly and makes serving easier.
Garnish with fresh sage or chopped herbs if desired, then serve hot and enjoy the comforting blend of flavors and textures.
2 lbs bone-in, skinless chicken thighs