Preheat oven to 400°F. Using a fork, poke holes in potatoes. Wrap in aluminum foil and place on a baking sheet. Bake for 1 hour. Cut potatoes in half lengthwise and allow the potatoes to sit for several minutes.
With a spoon, scoop out potato flesh being careful to leave 1/2-inch of the shells intact.
Place the shells back on the baking sheet.
In a bowl, mash potato pulp, milk, butter, feta, and garlic . When it's as smooth as you like add stir in the tomatoes. Spoon mixture into potato shells.
Bake for 20 minutes or until hot and lightly brown on top.
Garnish with Everything seasoning and spicy ranch.