1. 1. Start by heating the olive oil in a large skillet over medium-high heat. Add the ground turkey and cook, breaking it up with a spoon, until it’s browned and cooked through. Drain any excess fat and set the turkey aside.

2. 2. In the same skillet, add the diced onion and cook until softened, about 3-4 minutes. Then, toss in the sliced mushrooms and continue cooking until they’ve released their moisture and started to brown. Finally, stir in the minced garlic and red pepper flakes (if using) and cook for another minute until fragrant.

3. 3. Return the cooked turkey to the skillet and add the fresh spinach in large handfuls, stirring until it begins to wilt. This may take a couple of additions as the spinach cooks down. Season the mixture with Italian seasoning, salt, and pepper.

4. 4. Stir everything together until the spinach is fully wilted and all the ingredients are well combined. Let the skillet simmer for 2-3 minutes to allow the flavors to meld. Serve the Turkey Spinach Mushroom Skillet hot, and enjoy!