Step 1

In large bowl or measuring cup whisk together ingredients for sauce

Step 2

In skillet over medium high heat melt butter with olive oil

Step 3

Add veggies and stir while sauteing until softened (around 8 minutes)

Step 4

Season veggies with Italian seasoning, salt, pepper and red pepper flakes

Step 5

To make lasagna add 1 cup sauce to bottom of casserole slow cooker

Step 6

Top with three lasagna noodles then layer on about 1/2 cup of ricotta, 2 oz fresh mozzarella, 1/4 of the veggie mixture and 1/2 cup sauce

Step 7

Repeat for three more layers

Step 8

Your 5th layer will be a final layer of noodles topped with the remaining 1 cup of sauce, the shredded mozzarella and Parmesan cheese

Step 9

Cover and cook on low for 6-8 hours or high for 3-4

Step 10

Turn off heat or turn to warm and let rest for 30 minutes or so before slicing