Turkey + Sausage + Spinach + White Bean Soup

Name: Turkey + Sausage + Spinach + White Bean Soup
Cuisine: American
Ingredients: 1 1/2 lbs. ground turkey or chicken (sometimes I use 1 pound ground turkey PLUS a 1/2 pound of Italian OR Spicy sausage for more FLAVOR); 1 Tbsp extra virgin olive oil; 1 large red or yellow onion, diced; 1 tsp fennel seeds; 4 fresh garlic cloves, minced; 1 tsp dried oregano; 1 bay leaf; 1 cup carrots, peeled and chopped or baby carrots; 4 ribs fresh celery, sliced; 2 (15 oz.) cans white beans, drained and rinsed; 6 cups chicken bone broth; 2-3 cups fresh baby spinach, or baby kale; sea salt and freshly ground black pepper, to taste about 1/4 teaspoon each; a handful of fresh parsley leaves, chopped; fresh grated Parmesan cheese; red pepper flakes