Sizzling Philly-Style Steak Sandwiches

Ingredients

• 1/2 tsp. thyme dried
• 1/2 tsp. dried basil
• 1/2 tsp. garlic powder
• 1 tsp. ground black pepper
• 3 tbsp. canola oil
• 1/2 tsp. kosher sea salt
• 1 red onion, sliced into thin wedges
• 1 cup grape tomatoes, halved
• 4 small baguettes, halved
• 2 boneless beef sirloin strip steaks, about a pound each
• 1/2 tsp. onion powder
• 1 cup baby bella mushrooms, quartered
• 1 package sliced provolone cheese, around 200g