Take the squash out of the oven and let cool for a minute.
Increase the oven temperature to 400 degrees F.
Transfer the cooked squash onto a cutting board and carefully slice in half lengthwise. Scoop out and discard the seeds, then transfer the squash halves back onto the baking sheet.
Scoop about half of the flesh out of each squash half and set aside. Fill the squash halves with the beef, then top the beef with the scooped out flesh.
For the panko topping:
Mix the panko with the olive oil and the dried oregano. Spoon the mix on top of the butternut halves. Transfer back to the oven and bake until starting to brown (5 to 8 minutes).
½ cup panko, 1 tablespoon mild olive oil, 1 teaspoon dried oregano
Serve hot by itself or with a green salad.
Recipe notes:
*You can use ground beef that's leaner than that. If you do that you will have less or no grease to spoon out of the pan after browning the beef.**You can substitute canned tomato sauce for the canned crushed tomatoes.