Heat oven to 350°F. Spray 13x9-inch (3-quart) glass baking dish with cooking spray.

In 10-inch nonstick skillet, cook pancetta over medium-high heat 7 to 9 minutes, stirring frequently, until crispy. Remove pancetta with slotted spoon to small bowl. Discard all but 1 tablespoon drippings; return skillet to heat, and reduce to medium. Add onion and garlic. Cook 3 to 4 minutes, stirring occasionally, until tender. Add onion mixture to pancetta; set aside.

Separate dough into 8 biscuits; cut each into six pieces. Place evenly in baking dish. In large bowl, beat eggs and half-and-half with whisk until blended. Beat in thyme, salt and pepper. Stir in broccoli, 1 cup of the Parmesan cheese and the pancetta mixture. Pour over biscuits in baking dish; stir to distribute mixture and coat pieces with egg mixture.

Bake 35 to 40 minutes or until deep golden brown and center is set. Top with mozzarella cheese and remaining 1/2 cup Parmesan cheese. Bake 3 to 5 minutes longer or until cheese is melted. Cover loosely with foil if top is getting too brown. Let stand 15 minutes before serving. Cut into 4 rows by 3 rows.