Preheat the oven to 375°
Boil the broccoli in salted water for about 2 to 3 minutes. Drain it from the water and set it aside.
Then, line the bottom of a greased 9 x 13” with the broccoli and lightly seasoning it with salt and pepper.
Add a layer of the shredded rotisserie chicken on top. Lightly season it with salt, pepper and half of the garlic powder.
In a medium sized bowl add the cream of chicken soup, cream of mushroom soup, Monterey Jack cheese and sour cream.
Season it with salt, pepper, and the rest of the garlic powder, and stir everything together until it’s combined. Pour the mixture on top of the chicken layer and smooth it out so that it is flat and even.
In a small bowl, mix together the cheddar cheese, breadcrumbs, and olive oil. Sprinkle it evenly on top of the casserole.
Place it into the center rack of the oven for 20 minutes or until the sides are hot and bubbly, and the top is toasted.
Finally, let the casserole sit for about five minutes, garnish with parsley (optional), serve warm, and enjoy!