Add the spinach into the pot, pushing it down to fit. It will be loaded at this point, don’t you worry! Cover and reduce the heat to medium-low to steam the spinach, 1 to 2 minutes. Remove the lid. Begin tossing and rotating the spinach from the bottom to the top. Increase the heat to medium. Keep tossing and stirring until fully wilted, once it starts, it happens quickly, about 1 minute. Remove from the heat to cool.
7 Add the cooled spinach mixture, nutmeg, feta, dill, parsley, dark green onion slices, and bread cubes into a large mixing bowl. Toss to absorb the flavor into the bread. Stir in the eggs and add the chicken stock. Continuously stirring to absorb the stock into the bread cubes until evenly combined.
8 Remove the stuffing to a buttered 2-quart baking dish. Top with the remaining 3 tablespoons butter, dolloped on top. Cover and refrigerate to fully absorb all that great flavor. See Chefie Tip.
9 Bake at 350 degrees F., until browned on top, hot and bubbly, 40 – 45 minutes. Remove to rest and set, about 10 minutes.
Pro Tips
Fully assemble the stuffing, cover and refrigerate, 6 hours to overnight for best flavor and stress-free cooking. When ready to bake, place the baking dish into the cold oven and heat, as instructed above and begin the timer. Or use a thermal shock, safe baking dish to go straight into the heated oven.