Pasta Fazoolander

Ingredients

• 1 1/2 tablespoons olive oil
• 1 teaspoon tomato paste
• 1 anchovy fillet, chopped
• 4 cups chicken broth
• 1 cup dry cheese tortellini
• 1 (15 ounce) can white beans, rinsed and drained
• salt and ground black pepper to taste
• 1 pinch red pepper flakes
• 1 pinch dried oregano
• 2 cups baby spinach leaves
• 1/4 cup grated Parmesan cheese
• 1 pinch red pepper flakes, or to taste