Cut the chicken breast cutlets into cubes. For the marinade, mix mustard with the spices, 1 tablespoon vinegar, salt, black pepper, and a large container of plain yogurt. Add 2 tablespoons of barbecue sauce. Let the chicken marinate overnight if possible, or for at least 3 hours so it absorbs the flavors.

Thread the marinated chicken cubes and vegetables onto shish kebab skewers. (Kids can help with this step to encourage them to eat more vegetables.)

Heat a grill pan lightly brushed with oil over medium heat. (If you don’t have a grill pan, use a regular skillet brushed with oil.) Arrange the skewers in the pan and cook, turning occasionally, until the chicken is cooked through and nicely browned.

Serve with French fries and ketchup.