Spicy Lentil Soup

Ingredients (12)

• + 1 tablespoon olive oil add to pantry
• + ¼ cup chopped onion add to pantry
• ✓ 4 cloves garlic, chopped
• ✓ 1 large carrot, chopped
• + 1 large stalk celery, chopped add to pantry
• + 2 tablespoons tomato paste add to pantry
• + ⅛ teaspoon crushed red pepper flakes, or more to taste add to pantry
• + ⅛ teaspoon cayenne pepper, or more to taste add to pantry
• + salt and ground black pepper to taste add to pantry
• + salt and ground black pepper to taste add to pantry
• + 6 cups chicken stock add to pantry
• + 1 ½ cups dry lentils add to pantry