For the sauce:

• 2 cans of diced tomato, 796g.
• 1 can of tomato sauce,  680 ml
• 2 cans of tomato paste, 156 ml
• Small onion, thinly sliced ​​
• 2 green peppers, thinly sliced
• 1 small celery stalk, thinly sliced
• 1 tsp. ​​salt, pepper and garlic salt, to taste
• 1 tsp. crushed chili
• ½ tsp. sugar
• 1 tbsp. oregano
• 1 big bay leaf