Wash hands with soap and water.

Wash the vegetables.

Collect, dice, and measure all ingredients before starting to prepare the recipe.

Heat the oil in a large pot over medium heat.

Add the onion and garlic powder. Cook for about 10 minutes or until the onion is clear.

Add the carrots and celery and cook for 5 minutes until slightly soft.

Add the tomatoes and Italian seasoning. Stir until all ingredients are mixed together. Taste, and add a little bit of salt and pepper if desired.

Turn the heat to medium-high and bring sauce to a boil.

Once boiling, reduce the heat to low. Simmer uncovered for at least 30 minutes.

Stir in the spinach and cook for 2 minutes until spinach wilts.*