Black Bean, Mushroom + Cheese Cuban Panini - Ends + Stems with Chef Alison

Ingredients

• 2 Portobello Mushrooms
• 1 ⁄ 2 teaspoon Extra Virgin Olive Oil
• 1 teaspoon Kosher Salt (divided)
• 1 15-ounce can Black Beans
• 1 teaspoon Paprika
• 1 ⁄ 2 teaspoon Ground Cumin
• 1 teaspoon Dried Oregano
• 3 Tablespoons Dijon Mustard (divided)
• 1 cup Pickles
• 8 ounces Gruyere (or sliced swiss)
• 4 Torpedo Rolls (look for Cuban rolls, or something with a soft crust, brioche can work and Portuguese rolls too)
• 1 Tablespoon Mayonnaise
• 4 Tablespoons Unsalted Butter (divided)