Imagine if you will, deeply caramelized onions (cooked in a slow cooker) with red wine, butter, beef broth and thyme until they’re sweet and pungent. The onions are stuffed into large, perfectly cooked pasta shells until they’re practically overflowing. The stuffed shells are then layered on top of toasted, garlicky French bread, topped with an abundant mixture of grated Swiss, and Gruyere cheeses, and popped into the oven, so the cheese melts into a blanket of golden, gooey, goodness…Be still my French onion loving heart!