Preheat oven to 450 degrees, with racks in upper and lower thirds. On a rimmed baking sheet, toss rhubarb with honey. Roast on upper rack until beginning to soften, about 5 minutes. Let cool on baking sheet. On another rimmed baking sheet, toast walnuts on lower rack until fragrant, 5 minutes. Let cool, then chop.
In a large bowl, whisk together oil and vinegar and season with salt and pepper. Add arugula and fennel and toss to combine. Top with rhubarb, walnuts, and goat cheese.
I was looking for a way to use rhubarb in a savory dish. WOW! This salad is terrific, will definitely make this again. I added the juice that came out of the rhubarb when it was cooked to the salad dressing. Did not use a full pound of arugula.
This salad packs a lot of flavor for so little preparation. Added a bit more goat cheese. Have used this recipe more than once. It is a nice way to satisfy a rhubarb lover.