Ham Tortillas

12 slices fully cooked ham
1 (16 oz) pkg monterey jack cheese, cut into 1/2 inch strips
2 cans chopped jalapenos
12 (6 inch) tortillas
1/4 c butter
1/2 c flour
1 tsp salt
1 tsp ground mustard
4 c milk
3 c shredded cheddar cheese

Place a ham slice, cheese strip and 2 tsp jalapenos down the center of each tortilla. Roll up and place seam side down in a greased 13 x 9 inch baking dish.
In a saucepan, melt butter. Stir in flour, salt and mustard until smooth. Gradually add milk; bring to a boil. Cook and stir for 2 minutes. Add cheese and cook until melted.
Spoon sauce evenly over tortillas. Bake unciovered at 350 for 45 minutes.