- Prepare Chicken and Ham: Cook chicken breasts by boiling, baking, or grilling until fully cooked. Allow to cool, then dice into small pieces. Similarly, dice the honey baked ham into small cubes. 
- Mix Dressing: In a medium-sized mixing bowl, combine mayonnaise, Greek yogurt (if using), Dijon mustard, and honey. Mix until well combined. 
- Combine Ingredients: Add the diced chicken breast, diced honey baked ham, chopped celery, and chopped red onion to the bowl with the dressing. 
- Season: Season the mixture with salt and pepper according to your taste preference. 
- Mix Well: Gently toss all the ingredients together until evenly coated with the dressing. 
- Chill (Optional): If time allows, refrigerate the chicken salad for about 30 minutes to allow the flavors to meld together. 
- Serve: To serve, arrange lettuce leaves on plates or in bowls. Scoop the honey baked ham chicken salad onto the lettuce leaves. Optionally, garnish with sliced tomatoes and cucumbers. 
- Enjoy: Serve immediately and enjoy your delicious honey baked ham chicken salad!