Creamy Broccoli Soup

Ingredients (9)

• • 1 Tbsp  olive oil
• • 1 medium yellow onion
• • 2 cloves garlic
• • 1/4 tsp red pepper flakes
• • 4 cups vegetable broth
• • 1 head broccoli
• • 3 cups baby spinach
• • 1 avocado
• • Coarse salt and freshly ground black pepper