Sausage Traybake with Apples and Onions

Wide, low-sided baking sheets are ideal for oven-easy dinners; they facilitate heat circulation for better browning. We pair savory sausages with sweet apples and onions, which get a flavor boost from spicy mustard; a glug of hard apple cider or beer is used to deglaze the baking sheet. We love the double dose of apple flavor from cider, though a crisp lager or malty amber beer also is delicious; if you prefer, use low-sodium chicken broth instead. Select apples with a firm texture yet thin skin that stays tender during roasting. Honeycrisp and Gala are good options.