Make Ahead Tip: Prepare through step 3. Cover and refrigerate for up to 8 hours.
Ingredient Note: Chervil (from the Greek for “herb of rejoicing”) has a mild flavor between those of parsley and anise. It doesn't dry well, so is best used fresh.
1/2 starch, 1/2 reduced-fat milk, 1 vegetable, 1/2 fat