Preheat oven to 375° F
Heat a large saucepan over medium high heat and add 2 tbsp of olive oil, chopped onions, zucchini and garlic. Stir occasionally until lightly browned.
Next, add in crushed tomatoes, basil oregano and 1 tbsp of olive oil and stir. Add salt and pepper to taste then cover with lid and simmer over low heat while you prepare the rest of the dish (approx. 10 min).
Cook lasagna according to package instructions. While lasagna is cooking, prepare the cheese mixture by adding the ricotta cheese, mozzarella, parmesan, egg and parsley in a medium bowl and mix until well combined. Set aside.
Once lasagna is done cooking, rinse the lasagna under cold water (so they aren't so hot while you're handling). Lay them out on a sheet pan or parchment so they don't stick together.
Place about 1/3 cup of the tomato mixture onto the bottom of a baking dish and spread out. (I use a baking dish about 9"x13")
To make the roll-ups, spread a spoonful of the cheese mixture onto a lasagna noodle and spread out with your hands or the back of a spoon. Add the tomato mixture on top of the cheese and then spinach on top of the tomato. Roll up the lasagna noodle and place in baking sheet with seam side down.
Once all the lasagna roll-ups are placed in the baking dish, top off with tomato mixture and some more mozzarella and parmesan cheese then cover the baking dish with aluminum foil (you may need to tent up the foil so it doesn't touch the top of the lasagna).
Bake in oven for 35 minutes.