Line a shallow baking sheet with baking parchment, or lightly oil it.
Warm the olive oil in a skillet, over medium heat. Stir in the bread crumbs and continue stirring until the bread crumbs are golden brown, about 1 1/2 minutes. Spoon the browned crumbs onto a plate and allow to cool.
Make a small lengthwise incision in each date. Carefully remove the pits. Stuff 1 tsp. of the goat cheese into each pit-free date. Place the dates, cheese side up, in a single layer on the baking sheet.
Sprinkle the bread crumbs evenly over the top. (The dates can be prepared up to this point up to 24 hours in advance. Store, tightly covered, in the refrigerator.)
Bake the dates until warmed through, 10 to 12 minutes.
In the meantime, chop each walnut in half.
When the dates are warm and the cheese melting, press half a walnut onto the cheese.