If desired, arrange strips in a lattice pattern on a sheet of waxed paper. Use the pot lid as a guide to trim the lattice to size. Invert the lattice onto the beef mixture. Any leftover pizza dough can be baked and served as bread sticks.
To Make Ahead
Prepare as directed through Step 2. Place filling in an airtight container; cool slightly. Cover and refrigerate up to three days. To serve, return filling to pot. Cook, covered over medium heat until heated through, stirring occasionally. Continue as directed in Steps 3 and 4.