To make the mashed cauliflower topping:

1. Boil or steam the cauliflower until it is very soft. Drain well.

2. Put the cauliflower, butter, garlic, and cream into a food processor or blender. Pulse until very smooth. Let cool.

3. Once cool, add the egg yolks, chives and salt. Pulse until well mixed. Set aside.

To make the beefy layer:

1. Sautee the veggies in a skillet over medium-high heat in 1 tbsp of avocado oil until the onion is translucent, about 4-5 minutes.

2. Add the beef and brown. Drain off any excess fat/liquid.

3. Add the crushed tomatoes and Worcestershire sauce to the beef. Mix well. Season with 1/2 tsp of salt and 1/4 tsp pepper.

To assemble:

1. Add the beefy layer to the bottom of a 9×9-inch square or 8 or 9-inch round casserole dish. Press it down lightly.

2. Add the mashed cauliflower topping and spread it around evenly without pressing it down too hard.

3. Preheat oven to 190c and bake for 25 minutes or until hot and bubbly. Garnish with chopped parsley (optional) and serve!