Combine corn, beans and serrano pepper in small bowl and set aside.
Melt butter in saucepan over low heat. Whisk in flour and stir until combined. Slowly add 3/4 cup of milk whisking continuously. Stir over low heat until thickened. Add Monterey Jack cheese, onion powder and srirarcha. Stir until melted and smooth over very low heat.
Whisk eggs and 2 tablespoons milk in small bowl.
Heat 10 inch nonstick skillet over medium low heat, pour 1/2 the egg mixture into the skillet. Cook until set. Add 1/2 the corn/bean mixture. Fold omelette, remove from pan and top with 1/2 of the tomato,1/2 of the green onions and 1/2 of the cilantro. Top with a dollop of Greek Yogurt and drizzle with 1/2 of the Monterey Jack cheese sauce. Salt & pepper to taste! Repeat for second omelette.