Instant Pot Pot Roast Sandwiches Recipe - Six Sisters' Stuff

Ingredients

• 2 pounds beef pot roast ((chuck roast))
• 1 teaspoon salt
• ½ teaspoon pepper
• ½ teaspoon garlic salt
• 1 Tablespoon olive oil
• 1 cup beef broth
• ½ yellow onion (chopped)
• 2 garlic cloves (minced)
• 1 ½ Tablespoons Worcestershire sauce
• 1 Tablespoon soy sauce
• ½ teaspoon dried thyme
• ½ teaspoon dried rosemary
• 3 tablespoons butter
• 2 onions (thinly sliced)
• 8 ounces sliced cremini mushrooms
• 8 Tablespoons mayonnaise
• 2 ½ Tablespoons adobo sauce ((from chipotles in adobo))
• ½ teaspoon garlic powder
• Salt and pepper to taste
• 8 thick slices crusty sourdough bread
• 4 Tablespoons mayonnaise
• 8 slices provolone
• 1 ½ Tablespoons butter (more if needed)