Eating Healthy Today on Instagram: "Mushroom and Spinach Lasagna with Béchamel Sauce (via: @sofiaafoodie) Instructions: 1. Prepare the mushroom filling: • Heat 2 tbsp olive oil in a large skillet over medium-high heat. • Add the sliced leek and mushrooms (use your favorite mix!). Sauté for 10 minutes, stirring occasionally, until the mushrooms release their moisture and turn golden. • Add the baby spinach, salt, dried garlic, and red pepper flakes. Stir well and cook for another 5 minutes until