I make my marinara with canned crushed tomatoes and paste.
Here is my recipe. I think it's pretty darn good.
Mince a few cloves of garlic and sauté in olive oil and mushrooms optional.
1 tablespoon tomato paste and stir till it turns dark red.
28oz can crushed tomatoes.
1/2 cup red wine
Basil, oregano and parsley. Fresh herbs if possible.
2 tablespoons red pepper flakes or more
1 tablespoon sugar
Salt to taste
This is just the base. I may add in onion, zucchini, bell peppers and of course sausage, beef or venison.
That's about the same recipe you'll find on google where I started with mine. I later went to fresh cooked tomatoes, added bell peppers and onions from my garden. I hold the garlic and add garlic powder when I make up my spaghetti sauce. It's really a great recipe with venison smoked sausage or even store bought sausage.
I add zucchini or and yellow squash before I freeze it. I call it marinara primavera. I've heard it called ratatouille with added eggplant. You can chop up chicken breast with the ratatouille and serve it over rice.