Ham & Cheese Omelet Roll

I got this recipe from my friend Elaine & it is delicious!

4 oz. cream cheese, softened
3/4 C milk
2 T flour
1/4 tsp salt
12 eggs, blended
2 T dijon mustard
2 1/4 C shredded cheese, divided
2 C finely chopped ham, or use fried bacon

Line a 15x10 in. pan with parchment paper. Press in bottom of pan & up sides, pinch corners to prevent egg mix from going under paper. Grease well. Beat cream cheese & milk until smooth. Add flour & salt; mix again. Add eggs, mix well. Pour egg mixture into bottom of pan. Bake 30-35 min. @ 375 degrees or until eggs are set & puffy. Remove omelet & spread with mustard; sprinkle with 1/2 of cheese, top with ham or bacon . Start at one short side and roll up jelly-roll fashion, removing paper as you roll. Sprinkle remaining cheese on top & bake 3-4 minutes or until cheese is melted. Let stand 5 min. and then slice.