Preheat oven to 350°.
Heat oil in a large nonstick skillet over medium-high heat. Add bell pepper and onion, and sauté 5 minutes or until tender. Add corn, green onions, jalapeño, and garlic; sauté 3 minutes. Stir in 1/2 teaspoon salt and 1/2 teaspoon cumin. Remove from heat; cool slightly.
Combine remaining 1/2 teaspoon salt, remaining 1/2 teaspoon cumin, milk, egg substitute, 1/2 cup cheese, and chipotle chiles in a large bowl, stirring with a whisk. Stir in corn mixture. Add bread; stir gently to combine. Let stand 10 minutes. Spoon into a 2-quart baking dish coated with cooking spray. Sprinkle with remaining 1/2 cup cheese. Bake at 350° for 45 minutes or until pudding is set and lightly browned.