Cinnamon Cooper -- Everything Cast-Iron Cooking
Grilled Dijon Tomatoes: Page 175: 

These are seriously the best tomatoes I have ever put in my mouth and I LOVE tomatoes. It doesn’t hurt that these tomatoes (a “Siberian” variety gifted to us our favorite Mr. Damon) came from our garden. But I scooped out the seeds and filled them with a mixture of dijon mustard, parmesan cheese, bread crumbs and spices. They then went on the grill for a bit, got a little warmed and melty and oh my holy mama! Yummers!
Grilled Dijon Tomatoes: Page 175:

These are seriously the best tomatoes I have ever put in my mouth and I LOVE tomatoes. It doesn’t hurt that these tomatoes (a “Siberian” variety gifted to us our favorite Mr. Damon) came from our garden. But I scooped out the seeds and filled them with a mixture of dijon mustard, parmesan cheese, bread crumbs and spices. They then went on the grill for a bit, got a little warmed and melty and oh my holy mama! Yummers!