Cheese and Sausage Croissant Strata - Today's Parent

Ingredients

• 8 large store-bought croissants, sliced in half horizontally
• 6 eggs
• 3 cups milk
• 3/4 cup no-salt-added chicken broth
• 2 tsp olive oil
• 1 450-g pkg mild Italian sausage meat, casings removed
• 1 small onion, finely chopped
• 1 garlic clove, minced
• 1 227-g pkg sliced cremini mushrooms
• 1 cup grated Gruyere
• 2 tbsp finely chopped parsley