Preheat oven to 400˚F. Peel all the garlic cloves and place in the center of a piece of foil. Drizzle with olive oil, wrap tightly and place in the oven for about 25 minutes.
In a food processor add roasted garlic, mayonnaise, both mustards and pulse until smooth. Reduce oven temperature to 350˚F.
Slice dinner rolls in half and place bottom halves in a baking dish, spread garlic mayonnaise over the over them. Layer ham and shredded gouda and place tops of rolls on the top.
Brush the tops of the buns with melted butter and sprinkle with Everything seasoning, place in the oven and back about 15 to 20 minutes, until the cheese is melted.