A cozy spinach ricotta lasagna with creamy ricotta, garlicky spinach, and bright marinara layered with tender noodles and melty cheese. Simple to assemble, make-ahead friendly, and great for leftovers.
Prep Time 30 minutes mins
Cook Time 45 minutes mins
Total Time 1 hour hr 30 minutes mins
Serves about 8–10; a 9x13-inch pan typically yields 9 squares. Drain ricotta if watery and squeeze spinach very dry to prevent a soupy lasagna. Use thick marinara and do not overcook noodles; they will finish in the oven. Assembled lasagna can be refrigerated up to 24 hours before baking; add 5–10 minutes to covered bake time if cold. For oven-ready noodles, add 1/2 cup water or broth around the edges before baking. Cool completely before storing; refrigerate up to 4 days or freeze baked up to 3 months. Rest before slicing for clean layers.