This Italian Sausage Soup is packed with low carb vegetables and rich bone broth. It's a super satisfying keto meal, and it comes together in less than 40 minutes.
Set a large soup pan or dutch oven over medium heat and add the oil. Once hot, add the sausage and sauté, breaking up any clumps, until nicely browned.
Add the celery, onion, and garlic, and sauté 3 minutes, until the vegetables are beginning to soften. Then stir in the zucchini, green beans, red pepper, and tomato and sauté another 4 minutes.
Stir in the broth and tomato paste. Add the Parmesan rind. Bring to a simmer and cook 15 minutes. Fish out the parmesan rind, and season to taste with salt and pepper.