Put a bit of oil in your skillet and toss in the onions, bell pepper, celery and garlic. Cook until the onions are wilted.
Add the turkey and brown, stirring often.
When the meat is browned, stir in the tomato sauce and allow the meat to cook to the point where it is almost done. (It will continue cooking in the oven.)
While the meat cooks, stir together the almond meal, eggs and cheddar cheese.
Turn the heat off under the meat and let the sauce stop bubbling.
Spread the mixture gently over the top, using the back of a spatula to spread the mixture over the top of the meat. If it doesn't cover everything up to the edge, that's okay. Just work from the center out and cover as much as you can.
Bake this for 15-20 minutes. Then remove from the oven and allow to cool for about 10 minutes.
Cut into 8 slices like you would a pie, and serve.
This pairs well with a salad.
Please note that the nutrition data is a ballpark figure. Exact data is not possible.