Boil pasta in salted water according to package directions, drain, but keep about 1/2 cup of the pasta water. Rough chop washed broccoli rabe into bite size pieces.
In a large pan, heat 1 tablespoon olive oil over medium. Add sausage and stir till cooked through. Remove from the pan and set aside. In the same pan, add another tablespoon of olive oil and garlic and saute for about 30 seconds. Then add chopped broccoli rabe and season with a pinch of kosher salt. Cook for about 2 minutes till wilted down.
Add 1 cup of broth and bring to a simmer for about 2 minutes then add your pasta. Adding the pasta should help thicken the sauce a bit to coat the little bowls. If you like more sauce, a tablespoon or two of the pasta water until it meets your expectations. Mix in sausage and add red pepper flakes. Taste and adjust any seasonings. Top with goat cheese (or mix in while warm) if desired.
Notes
For gluten free, just substitute your favorite GF pasta. The sauce may not thicken quite the same. If this happens, you can stir in a teaspoon of arrowroot powder to help it out.
If you can't find broccoli rabe or rapini, feel free to use what you have on hand - kale, spinach, mustard greens, etc. My favorite would be kale or spinach.
To make this dairy free, you can easily leave out the goat cheese.
For sausage recommendations, see the post.
For broth, I like to use Trader Joe's Hearty Vegetable (which does have onion but no MSG) or make my own migraine-friendly broth. You can find chicken broth here or vegetable broth in my new cookbook.