Creamy Mushroom and Spinach Onion Soup - PrepYoSelf

Ingredients

• 1 onion ((thinly sliced))
• 2 cups mushrooms ((sliced))
• 2 tablespoons garlic ((minced))
• 3 cups baby spinach
• 1 tablespoon flour
• 2 cups beef broth
• 1/2 cup heavy cream
• 1/4 teaspoon salt
• 1/4 teaspoon pepper
• 1 tablespoon olive oil