MAKE-AHEAD SHEET-PAN MEATBALLS

Steps:

• Place bread in a large bowl, pour milk over, and let sit until moistened, about 5 minutes. Squeeze bread with your hands to remove excess milk; discard milk. Tear bread into pea-size pieces and return to bowl.
• Add beef, sausage, eggs, Parmesan, and salt to bread. Using your hands, gently mix until evenly distributed (do not overmix).
• To serve immediately:
• Arrange racks in upper and lower thirds of oven; preheat to 500°F. Lightly coat three 18x13" rimmed baking sheets with oil. Fill a small bowl with cool water. Moisten your hands and roll meat mixture between palms into ping pong-size balls (about 1.5" diameter; 1.2 oz. each), occasionally moistening hands as needed. Arrange meatballs 1/2" apart on prepared sheets.
• Roast meatballs, rotating racks top to bottom once halfway through, until lightly browned and cooked through, 8-10 minutes.
• To freeze to serve later:
• Line two 18x13" rimmed baking sheets with parchment. Fill a small bowl with cool water. Moisten your hands and roll meat mixture between palms into ping pong-size balls (about 1.5" diameter; 1.2 oz. each), occasionally moistening hands as needed. Arrange meatballs 1/4" apart on prepared sheets. Freeze on sheets until firm, about 1 hour. Transfer to an airtight container or resealable plastic bag and freeze up to 3 months.
• To cook meatballs from frozen, preheat oven to 500°F. Lightly coat a rimmed baking sheet with oil. Transfer desired amount of frozen meatballs to prepared sheet and roast, turning once halfway through, until lightly browned and cooked through, 10-12 minutes.