Cook bacon in a large skillet until crisp; remove bacon, reserving drippings in skillet. Drain bacon well on paper towels; crumble and set aside.
Sauté green pepper and onion in reserved bacon drippings until tender. Add corn, tomatoes, salt, and pepper; cook over medium heat, 10 minutes, stirring frequently. Add cheese, and stir until cheese melts.
Top toast points with vegetable mixture. Serve immediately.