Paleo Breakfast Pizza Casserole (Whole30 + Keto)

INGREDIENTS

1/2

onion, diced

3 cloves

garlic, minced

1 lb

ground Italian sausage

4 cups

arugula, roughly chopped ((or sub spinach))

eggs

1 tbsp

grass-fed butter or ghee ((or sub coconut oil))

1 cup

marinara sauce

1 tbsp

oregano

1 cup

parmesan cheese, grated ((optional, omit for Whole30))