Preheat oven to 350 degrees F.
Place breadcrumbs, cheese, garlic, parsley, olive oil, oregano and sea salt into a bowl and mix well.
Cut a cone shape out of the top of each tomato and then scoop out most of the seeds carefully.
Stuff with breadcrumb mixture and place in an 8" x 8" baking pan.
Bake until stuffing is golden brown and tomatoes are softened, about 20-25 minutes.