marinara sauce with spinach

I made this marinara to make lasagna. My mother was here and thought that it was so good and wanted the recipe. 

1 onion, fine diced

2 large cloves of garlic, diced

1 28oz can crushed tomatoes (you can use the one with basil added) and about 1/4 cup of water to rinse the can

1 bag of spinach

olive oil

1/2 tsp italian seasoning/basil (or whatever herbs you want)

salt and pepper to taste

parmigiana regiano

• heat oil in a pan on medium heat
• saute onions until a little brown and tender
• add garlic right before adding the spinach 
• add spinach in batches and saute until wilted
• add crushed tomatoes, water, herbs, salt and pepper, and the parmigiana regiano
• when the sauce is bubbling, cover and simmer for 30 minutes
• uncover and cook about 20 minutes more to thicken up the sauce

Serve over pasta, in lasagna, or whatever you would like. Enjoy.