Marinate chicken with dijon mixture in a large bowl or ziploc bag.
Brush chicken with canola oil; season with salt and pepper, to taste. Add chicken to grill, and cook.
To assemble the salad, place romaine lettuce in a large bowl; top with chicken, bacon, strawberries, avocado and corn. Pour the Dijon dressing on top of the salad and gently toss to combine.