It's always good to wash all the fresh ingredients. Even if you purchase triple washed greens in those convenient bags at the supermarket, it's still a good idea to give the greens a rinse.
Remove the ends of the radishes, then thinly them. Peel the shallot and finely mince it. Depending on its size, you want about 3 tablespoons.
Quarter the lemon and remove as many seeds as you can. Slice the chives thinly.
Marinate the Radishes
Combine the radishes, creme fraiche and shallots in a bowl. Squeeze the juice from the lemon quarters over the radishes, then drizzle a little olive oil on top.
Season with salt and pepper and stir to combine all the ingredients.
Let this marinate for at least 15 minutes, but give it a stir occasionally.
Prepare the Salad
Into a large salad bowl, combine the greens with the marinated radishes and the chives. Toss well to combine all the ingredients.