To make the skewers:

• If using wooden skewers, soak the skewers in water for at least 30 minutes to prevent them from burning on the grill.
• Preheat the grill to high heat, about 400℉ (200℃).
• Slice the chicken sausage into 1-inch thick pieces.
• Core the red and green apples and cut them into 1-inch cubes.
• Peel the red onion and cut it into 1-inch squares.
• Thread the ingredients onto the skewers in an alternating pattern. For example: start with a piece of chicken sausage, followed by a piece of red apple, then green apple, and a layer of red onion. Repeat this pattern until each skewer is full, leaving a little space at each end of the skewer. You can arrange the order of ingredients on the skewers however you like.
• Once you have arranged the skewers, lightly brush each with olive oil to enhance grilling and prevent sticking.
• Place the skewers on the preheated grill. Cook for 10-15 minutes, turning occasionally, until the chicken sausage, vegetables, and apples are tender and slightly charred.
• Remove the skewers from the grill and let them cool slightly before serving. Drizzle with hot honey if desired.