'Seen' is the past participle of the action word, 'see'. It can also used as an idiom. 'Scene' is a noun, and has many uses, including referring to a location, a place of specific interest, a public display that causes disruption, or the action in a story.
Homemade mayo
Trying out a #whole30 mayo recipe. You can make so many different dips and and dressings from this basic recipe. Yum