Velvety Tomato Tortellini Soup

Ingredients

• 1 teaspoon olive oil
• 1/4 cup grated Parmesan, for serving
• 1 teaspoon Italian seasoning
• 1/2 teaspoon salt
• 2 cups half and half
• 2 cups vegetable broth
• 1 teaspoon onion powder
• 1/2 teaspoon pepper
• 2 cloves garlic, minced
• 9 ounces cheese-filled tortellini
• 1 1/2 cups milk
• 2 (10 3/4 ounce) cans condensed tomato soup