1. Preheat oven to 350 degrees F. Line a 12- cup muffin pan with paper liners. Spray liners with vegetable cooking spray.
2. In a medium bowl, stir together egg substitute, salt, pepper, and thyme if using. Pour 1/4 cup of the mixture into each lined cup. Add 1 Tbsp. bell peppers, 1 Tbsp. tomatoes, and 2 Tbsp. cheese to each cup. Stir to mix.
3. Bake for 20 minutes or until eggs are thoroughly cooked, then turn oven off. Allow pan to rest briefly in the oven, about 1 minute, then remove pan.
4. Remove omelet cupcakes, and set on cooling rack. Serve warm or at room temperature.
Source: Hannaford fresh Magazine, January - February 2011