2 tbsp olive oil 1 cup onion chopped (1 medium) 4-5 clo 15.5oz each) drained and rinsed 14.5 oz fire-roasted tomatoes (1 can)(or regular diced) or 4 medium size ‘ripe' roma tomatoes de-seeded and pureed coarsely 2 tbsp tomato paste 1 tbsp sun dried tomatoes optional, but recommended 1/2 tsp ground cinnamon