Arrange avocado slices on a platter or several appetizer plates.
Melt butter in a small skillet over medium-high heat until butter begins to bubble and foam. Cook and stir chopped almonds in hot butter until golden and fragrant, 1 to 2 minutes. Transfer almonds to a paper towel-lined plate to cool.
Top each avocado slice with almonds and sea salt.
Vitamin B2 (Riboflavin) – water soluble vitamin needed for proper energy metabolism and a variety of cellular processes