Spinach Tomato Cream sauce

I made this last night and served it over cooked cheese ravioli.  My husband has diabetes and he had it over grilled salmon.  It's delicious - will be used over pasta. Another option is to spoon this over cooked spaghetti squash - low carbs!!

In a bowl, combine all ingredients and set aside:
3 cups chopped tomatoes
3/4 cup fresh chopped basil
1/4 cup capers
1/2 tsp. salt
1/4 tsp. pepper

Heat 2 Tblsp. butter in skillet.  
Add a chopped (med.) onion & saute for 3-5 minutes.
Add 6 cloves minced garlic & saute until softened.
Add reserved tomato mixture. Cover and simmer for 20 minutes.
Add 4 cups torn spinach (or baby spinach leaves).  

Cover and cook another 5-10 minutes until the spinach has wilted & cooks.

Stir in a cup of heavy (whipping) cream. 

Stir and heat on low for another few minutes. 
Spoon over cooked ravioli/pasta/fish/vegetables.
Top with grated parmesan, if desired.