Preheat oven to 375F and move the rack to the middle position.
Boil a pot of water and cook the egg noodles for 1 minute less than the package directions indicate. Add the broccoli to the pot 2 minutes before the noodles are done. Drain and transfer to a 9x13 casserole dish.
To the casserole dish, add the chicken, condensed soup, sour cream, garlic powder, scallions, and half the cheddar. Toss and then smooth into an even layer.
Top with the rest of the cheese, then cover with foil and bake for 25-30 minutes. Uncover and broil if desired.
Serve immediately with extra salt & pepper if needed.
Notes
Serves 6-8 depending on portion size.
Use fresh or frozen broccoli: I bought one pound of broccoli (including the stem), which made about 4 cups when cut into florets. Anything in the ballpark will work. If using frozen broccoli, thaw it, drain it, and add to the casserole in step 3... or add it from frozen to the boiling water with the noodles, but only cook it for up to a minute since frozen broccoli is already par-cooked and you don't want it getting mushy in the oven.
Nutritional information is provided as a courtesy only and should be construed as an estimate rather than a guarantee. Ingredients can vary and Salt & Lavender makes no guarantees to the accuracy of this information.