For the bread: 

• 1 ½ cups almond flour
• ½ cup flaxseed meal
• 1 ½ tsp baking powder
• 1 ½ tsp xanthan gum
• pinch of salt
• 3 egg
• 3 tbsp granulated Stevia or other low carb granulated sweetener 
• 1 ½ tsp apple cider vinegar
• 4 tbsp melted butter 
• 6 tbsp sour cream 

For the casserole: 

• 4 eggs
• 2/3 cup heavy cream
• 1/3 cup unsweetened almond milk 
• 1/3 cup granulated Stevia or other low carb granulated sweetener 
• 1 tsp vanilla extract 
• 1 tsp ground cinnamon 

For the topping: 

• 3 tbsp melted butter 
• 3 tbsp granulated Stevia or other low carb granulated sweetener
• 1 tsp ground cinnamon 
• ¼ cup chopped walnuts