Cook peas in boiling water to cover for 1 to 2 minutes; immediately plunge into ice water to stop cooking process. Cook corn in boiling water 2 minutes; immediately plunge into ice water. Drain peas and corn.
Chop lettuce into small pieces; place in a large bowl. Add peas, corn, cucumber, and next 6 ingredients; toss with Mustard Vinaigrette. Add cheese, salt, and pepper; toss gently. Mound salad on a large platter, and sprinkle with bacon.