1. Brown hamburger in skillet with onion. Remove and mix in bowl with bacon pieces, breaking up any larger clumps with a fork or pastry mixer until you have a fine mix. Drain well of any excess grease and press into the bottom of a deep-dish pie pan. Set aside.
2. Preheat oven to 350F. 3. Combine remaining ingredients in mixer bowl and whip well. Pour mixture over beef "crust" and bake 40-45 minutes until top is browned and "set". Cool 15-20 minutes before slicing.
This can be packaged in Ziplocs or plastic containers for meals quickly microwaved over the next 3-5 days. Does not freeze well.