On a large platter, empty your cole slaw bag and mixed lettuce bag on to the platter, tossing it all together until evenly mixed. Add your sliced peppers and oranges over top of the lettuce.
Next, place your slivered almonds in a small pan over medium heat for 5 minutes tossing occasionally to get them lightly toasted. Remove from heat let cool.
For the dressing, in a medium bowl, mix together your Mayonnaise, sour cream (or yogurt), olive oil, soy sauce and toasted sesame oil (if using this). If the dressing seems too thick, add 1 tbsp of water at a time until it reaches a desired consistency.
Next, take your cooled almonds, chicken and a large heaping handful of your crunchy chow mein noodles and add that to your salad. Drizzle your salad with a little bit of your dressing.
Toss the salad lightly.
Serve the salad with the extra chow mein noodles and remaining dressing on the side.