The first thing I did was cut all the tomatoes in half and then scooped out the insides. I put each tomato face down on a paper towel just to dry them out a little. Then I put the tomatoes in a big bowl and added:
About 1/2 cup olive oil
3-4 cloves garlic, minced
Salt and pepper
1 t. oregano
2-3 T. balsamic vinegar
I mixed it all up and let the tomatoes marinate for about a half hour, stirring once in a while. Then I removed the tomatoes and put them on a foil-lined baking sheet.
Meanwhile, in a small bowl, I mixed together:
About 3/4 cup Panko breadcrumbs
4 oz. crumbled Gorgonzola
About half the marinade from the tomatoes
I stuffed each tomato with the Gorgonzola mixture and then drizzled the remaining marinade over the top.
Baked at 375 degrees for about 20-30 minutes. I baked mine until they were really roasted because I used them on pasta. If I was going to serve the tomatoes as an appetizer or something, I would bake them less so they would still be firm and easier to hold. But, for pasta they were delicious! Here they are fresh out of the oven:
I used spinach tagliatelle and finished the dish with fresh grated Parmesan and fresh basil.