2 1/2 tablespoons grapeseed or safflower oil 1 14-ounce can hearts o rough chopped to consistency of crab meat 1/4 cup chopped celery 1/4 cup diced red bell pepper 1/2 cup chopped onion 1 teaspoon minced garlic 2 teaspoons old bay seasoning 1 teaspoon fresh lemon juice 1/4 cup vegan mayonnaise 2 6-inch hoagie rolls vegan bu