Tortellini Soup with Creamy Tomato Broth

Ingredients

• 4 cloves Garlic, minced
• 1 Onions, chopped
• 2 Carrots, chopped
• 3/4 lb Mushrooms, brown or cremini, sliced
• 1 can Diced tomatoes, preferably fire-roasted (28 oz / 794 g can)
• 10 oz Tortellini, fresh or frozen
• 1 Tbsp Cooking oil
• 1/2 tsp Red pepper flakes
• 1/2 Tbsp Basil, dried
• 3 cups Vegetable broth
• 2 to 4 Tbsp Plain yogurt (opt)
• 5 oz Baby spinach
• 1/2 Lemons, juice of