Preheat oven to 350°F.
Cook bacon until crispy and scramble the eggs.
Slice slider buns and place the bottoms on a lined baking sheet.
Spread butter on the bottom buns and mayo on the top buns.
Layer scrambled eggs, cooked sausage, bacon, and shredded cheese on the bottom buns.
Place top buns on, brush with melted butter, and sprinkle everything bagel seasoning.
Bake for 10–12 minutes or until golden and melty.
Serve warm and enjoy!