Thawed meat pie should be reheated for 20-25 minutes at 350 degrees. We really do not suggest reheating from frozen as the shells will get brittle and overbake if more than 25 minutes at 350. Sorry!
I thaw my haggis pies out. Cooking time on them is 20-25 min. I would guess at least an hour @350F if they're still frozen
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