Easy homemade pizza sauce with fresh tomatoes and tomato paste. Ingredients: - 5 fresh large tomatoes- 1 red bell pepper- 3 minced garlic cloves- 1 tsp of dried oregano- 4 tbsp of tomato paste- 1/2 tsp of salt- 2 tbsp of olive oil- 1/2 tsp of red chili pepper flakes- 1 tsp of white sugar; the sugar helps you to get rid of the sour taste of tomatoes in the pizza sauce.- 1 tsp of onion powder.