Line a sheet tray with parchment (for easy clean up). Preheat oven to 450F. Wash and cut 2 Apples, 1 bulb Fennel, 1 large Yellow Onion, 2 medium Sweet Potatoes, and ¾ lb Brussels Sprouts. Toss with 2 tablespoon Olive Oil and Kosher Salt and Pepper to taste. Spread out in a single layer on sheet pan. If necessary, use a second pan to avoid crowding.
Bake for 20 minutes, until veggies are beginning to brown. Place 5-6 links Chicken Sausage (cooked) on top and return to oven for 15-20 more minutes, until vegetables are beginning to char and sausage is warmed through. Remove from oven.
While sheet pan(s) are in the oven, prepare the dressing. In a sturdy cup (for immersion blender) or base of a food processor or pitcher of a blender, add ¼ c Apple Cider Vinegar, 1 tablespoon Maple Syrup, 1 tablespoon Dijon Mustard, ½ teaspoon Kosher Salt, 2 cloves Garlic, and ½ C Olive Oil. Blend until emulsified. Season with salt and pepper as necessary.If making the vinaigrette by hand, use a large, wide bowl. Whisk together all ingredients except oil. While whisking constantly and vigorously, slowly drizzle in olive oil. DO NOT RUSH or the vinaigrette will never emulsify and will remain broken.
When cool enough to touch, slice sausages on the bias. Drizzle a few tablespoons of dressing over vegetables while still warm and gently toss to coat.
Serve by plating up a large serving of vegetables with 6-8 slices of sausage and topping with an additional drizzle of dressing. Enjoy!
Notes
You will have about half of the salad dressing left over. It is also excellent on a salad of greens (arugula, spinach, frisée or whatever you like!), sliced apples, goat cheese, and candied pecans. If you don't want leftovers, just halve the recipe!
Adjust cooking time depending on the kind of sausage you are using. Most chicken sausages I've encountered come pre-cooked. If using chicken, beef, or pork sausage that is raw, add them during the initial 20 minute cooking time to give them adequate time to brown and cook to 165F. If you are using vegan sausage, cook per package directions; some can get very dry if overcooked.