Maple Mushroom Crostini

"This maple mushroom crostini is the perfect appetizer or snack! Sauteed mushrooms caramelized with maple syrup and served on toasted baguette - so good! These maple mushrooms are caramelized along with some chopped onions in a skillet, which is quick and easy to do. Serve the mushrooms warm on slices of toasted baguette for an easy and delicious appetizer or snack. You can even take it up a notch by adding some cream cheese or soft havarti to the bread first!"