It’s summer cookout season here in Iowa, and our grills are sure to get a workout with upcoming July 4 picnics, family reunions and campfire gatherings, plus football tailgating in a few short weeks.

Iowans love to grill outdoors because it’s a healthy and fun way to prepare meals that wow guests. But it also can be intimidating, especially when you’re worried about undercooking or overcooking meats on the grill, says Anne Cundiff, a registered dietician at Hy-Vee on Fleur...