Step 1

In a large pot or Dutch oven, cook the sausage over medium heat, breaking it up into small pieces as it browns, 5 to 7 minutes. Once browned, use a slotted spoon to transfer the sausage to a colander in the sink to drain, leaving about 1 tablespoon of the drippings in the pot for sautéing the vegetables.

Step 2

Add the diced onion and carrots to the reserved drippings (if the pot seems dry, add a bit of oil). Sauté over medium heat until softened, about 4 to 5 minutes. Add the minced garlic and cook for 30 seconds, stirring constantly, until fragrant. Do not brown. Sprinkle the flour over the vegetables and stir until fully incorporated, about 1 minute.

Step 3

Gradually pour in the chicken broth, and use a wooden spoon to scrape up any brown bits from the bottom of the pot. Add the potatoes, salt, black pepper, and crushed red pepper flakes (if using). Bring the mixture to a boil, then reduce the heat to low, cover, and simmer. Stir occasionally to prevent the potatoes from sticking to the bottom of the pot. Cook until the potatoes are tender, about 15 minutes.

Step 4

While the soup simmers, transfer the sausage to a paper towel-lined plate. With more paper towels, blot the sausage to absorb any excess grease.

Step 5

Add the baby spinach and cooked sausage to the soup. Simmer until the spinach is wilted, a few minutes. Stir in the cream and cheese and continue to simmer until everything is warmed through. Taste the soup and adjust the seasoning if needed. Serve hot, passing more cheese at the table.