Mushroom Sandwich Melts Recipe

Ingredients

• 1 medium onion, diced
• 3 garlic cloves, pressed
• 2 Tbsp unsalted butter
• 24 oz 1 1/2 lbs white mushrooms, diced
• 8 oz Bacon, chopped into thin strips
• 2 Tbsp mayo
• 1/4 to 1/2 tsp salt, or to taste
• 1/4 tsp black pepper, or to taste
• 2 1/2 cups 8oz Mexican cheese blend, finely shredded*
• 1/4 cup fresh chopped parsley, plus more for garnish
• 2 soft French baguettes, sliced into 1/2" thick toasts