Place corn on a baking sheet coated with cooking spray. Broil 7 minutes or until lightly browned. Remove from baking sheet, and set aside.
Bring broth to a simmer in a medium saucepan (do not boil). Keep warm over low heat.
Heat oil in a large Dutch oven over medium-high heat. Add shallots and garlic; sauté 2 minutes or until tender. Reduce heat to medium. Add rice; cook 1 minute, stirring constantly. Add vermouth; cook 1 minute or until liquid is nearly absorbed, stirring constantly.
Reduce heat to medium-low. Add broth, 1/2 cup at a time, stirring constantly until each portion of broth is absorbed before adding the next (about 25 to 30 minutes total).
Gently stir in chicken and corn. Add half-and- half, green onions, and black pepper. Cook until thoroughly heated (do not boil). Sprinkle each serving evenly with cheese and bacon. Serve immediately.