Lasagna Roll Ups

For dinner I had leftovers from Pinterest inspired recipe in the freezer, so those were partially thawed and put into the oven.  Dinner was Lasagna Roll Ups, I combined several recipes and came up with one of my own. I made two different kinds at the same time to try to appease picky eaters and get rid of spinach that was going bad in my fridge.
1 box of lasagna noodles
3-4 roma tomatoes, sliced
fresh spinach leaves
1 container ricotta cheese (I used skim)
2 T Parmesan cheese
2 C. mozzarella cheese
pepperoni sliced
Marinara sauce either homemade or jar sauce works well too.

Simple Marinara:
2 T olive oil
1 small onion, minced
3 cloves garlic, minced
1 28 oz can crushed tomatoes
1 28 oz can tomato puree
2 1/2 T dried Italian seasoning

Heat oil, sauté onion until almost transparent, add garlic and sauté until tender.  Add tomatoes and puree and seasoning.  Reduce heat and simmer.

Boil noodles until al dente, drain.  Mix together ricotta and parmesan cheese. Place a cup of marinara in bottom of 9x13 pan.  Lay out noodle, spread cheese mixture on it, layer with tomato & spinach, or pepperoni slices, roll up and lay seam side down in pan.  Cover with remaining marinara and mozzarella cheese.  Bake in oven at 350 degrees for 20-25 minutes until warm and bubbly. Left overs freeze well and reheat from frozen in pan in about an hour.

Not the prettiest picture but they are oh so yummy!