Step 1 of 14
Skillet Zucchini Noodle Lasagna
Preheat the oven to 350°F.
Step 2 of 14
Skillet Zucchini Noodle Lasagna
Line two large baking sheets with parchment paper. Set aside.
Step 3 of 14
Skillet Zucchini Noodle Lasagna
Use a mandolin or a sharp knife to slice the zucchini lengthwise into 1/8-inch ribbons. Arrange the zucchini ribbons in a single layer on the baking sheet.
Step 4 of 14
Skillet Zucchini Noodle Lasagna
Sprinkle the zucchini ribbons liberally with salt, and allow to sit for 10-15 minutes for the salt to draw out excess moisture.
Step 5 of 14
Skillet Zucchini Noodle Lasagna
Pat the zucchini with paper towels until it is very dry.
Step 6 of 14
Skillet Zucchini Noodle Lasagna
Bake the zucchini ribbons on middle rack of oven until they look dry and slightly golden at the edges, 25-30 minutes.
Step 7 of 14
Skillet Zucchini Noodle Lasagna
Remove the baking sheets from the oven and allow to sit until the zucchini is cool enough to handle. While the zucchini bakes, prepare the meat sauce.
Step 8 of 14
Skillet Zucchini Noodle Lasagna
Spray a 9-inch cast-iron skillet spray with nonstick cooking spray and then place over medium-high heat. Add the ground beef, salt, black pepper, garlic powder, and Italian seasoning to the skillet. Cook the beef, breaking it up with a spatula, until thoroughly browned, 5-6 minutes.
Step 9 of 14
Skillet Zucchini Noodle Lasagna
Drain the fat from the skillet. Return the skillet to the stove and turn heat to medium-low. Pour the marinara sauce over the meat and stir to combine. Simmer for 2-3 minutes. While the sauce simmers, prepare the cheese mixture.
Step 10 of 14
Skillet Zucchini Noodle Lasagna
Place the ricotta, Parmesan, salt, black pepper, garlic powder, and Italian seasoning in a large mixing bowl. Stir with a rubber spatula to thoroughly combine.
Step 11 of 14
Skillet Zucchini Noodle Lasagna
Remove the skillet from the heat, and transfer most of the meat sauce to a separate bowl, leaving a scant 1/2 cup in the skillet. Place a single layer of zucchini noodles over the sauce. Drop about 1/3 of the ricotta mixture by spoonfuls over the noodles, and gently spread it into an even layer. Spoon 1/4 of the remaining meat sauce over the ricotta. Repeat the layering process two more times, ending with a final layer of zucchini ribbons, followed by the last 1/4 of the meat sauce. Sprinkle the shredded mozzarella in an even layer over the top of the lasagna.
Step 12 of 14
Skillet Zucchini Noodle Lasagna
Bake the lasagna on middle rack of oven until cheese on top is golden brown and skillet is bubbling at the edges, 30-45 minutes.
Step 13 of 14
Skillet Zucchini Noodle Lasagna
Check to see that the skillet lasagna is done. Remove from oven or add time as needed.
Step 14 of 14
Skillet Zucchini Noodle Lasagna
Allow the lasagna to rest for at least 20 minutes before serving.