Heat the oven to 200°C (400°F)
If you don't already have the mashed potatoes then boil 3 potatoes and mash them
Cut the bacon into smaller pieces then fry until it starts to be crisp, let the bacon rest on paper towel to remove some of the fat
Mash the avocado with the potatoes and melted butter. Whisk together milk and eggs and combine with the potato and avocado mix.
Shred the cheese and set aside
Take another bowl and combine the dry ingrediens before mixing it with the wet mixture. Add the bacon bits.
Heat up the waffle iron and start making waffles! Place ready waffles on a baking sheet.
Add the shredded cheese on top and let it melt in the oven for 5 min
You can serve it with a dollop of sour cream, some more bacon or sausage