Cozy Slow Cooker Vegetable Lasagna (Print version)
A cozy meatless slow cooker lasagna layered with marinara, ricotta, spinach, mushrooms, zucchini, and plenty of melty mozzarella.
# Ingredients:
For the vegetables
01 -
1 tablespoon olive oil
02 -
8 oz (225 g) cremini mushrooms, sliced
03 -
1 medium zucchini, thinly sliced
04 -
1 red bell pepper, diced
05 -
1 small yellow onion, diced
06 -
5 oz (140 g) baby spinach
07 -
1/2 teaspoon kosher salt
08 -
1/4 teaspoon black pepper
For the cheese layer
09 -
15 oz (425 g) part-skim ricotta cheese
10 -
1 large egg
11 -
1/2 cup (50 g) grated Parmesan cheese
12 -
2 cloves garlic, minced
13 -
1 teaspoon Italian seasoning
For assembling
14 -
4 cups (960 ml) marinara sauce
15 -
9 oz (255 g) no-boil lasagna noodles, broken as needed
16 -
2 cups (225 g) shredded mozzarella cheese
17 -
Nonstick cooking spray
18 -
2 tablespoons chopped fresh parsley or basil
# Instructions:
01 -
Heat olive oil in a large skillet over medium-high heat. Add mushrooms, zucchini, bell pepper, onion, salt, and pepper. Cook for 6-8 minutes, until softened and most liquid has evaporated. Stir in spinach for 1 minute, then remove from heat.
02 -
In a medium bowl, stir together ricotta, egg, Parmesan, garlic, and Italian seasoning until smooth and evenly combined.
03 -
Coat a 6-quart slow cooker with nonstick spray. Spread 3/4 cup marinara sauce over the bottom so the noodles do not stick.
04 -
Add a layer of broken no-boil noodles, one third of the ricotta mixture, one third of the vegetables, 1/2 cup mozzarella, and about 3/4 cup marinara. Repeat twice, then finish with remaining noodles, sauce, and mozzarella.
05 -
Cover and cook on high for 3-3 1/2 hours or on low for 5-6 hours, until the noodles are tender and the sauce bubbles around the edges.
06 -
Turn off the slow cooker, remove the lid, and let the lasagna rest for 20-30 minutes before slicing or spooning out portions. Sprinkle with parsley or basil before serving.
# Good to know:
01 -
Use a 6-quart oval slow cooker for the easiest layering.
02 -
Resting time helps the lasagna firm up for cleaner servings.
03 -
If using a smaller slow cooker, reduce the noodles slightly and avoid overfilling.