Bring 2 cups water to a boil in a medium saucepan; stir in oats, and remove from heat. Stir in 3 tablespoons butter, and let mixture cool to 120°.
Combine 1 1/2 cups flour, sugar, salt, and yeast in a large mixing bowl; add oat mixture and egg, and beat at low speed with an electric mixer until blended. Beat at medium speed 3 minutes. Stir in enough remaining flour to make a stiff dough.
Turn dough out onto a floured surface, and knead until smooth and elastic (about 5 minutes). Cover and let rest 15 minutes.
Punch dough down; turn out onto a lightly floured surface, and knead lightly 4 or 5 times. Press dough into a greased 13- x 9-inch pan. Cut diagonal lines 1 1/2 inches apart, cutting completely through dough. Rotate pan, and repeat procedure in opposite direction forming diamonds.
Cover and let rise in a warm place (85°), free from drafts, 45 minutes or until doubled in bulk.
Combine cheese and next 3 ingredients; set aside.
Drizzle dough with 4 tablespoons melted butter.
Bake at 375° for 15 minutes; brush with remaining 2 tablespoons melted butter, and sprinkle with cheese mixture. Bake 10 more minutes or until golden brown. Serve warm or at room temperature.