Preheat oven to 425 degrees. Add oil to a pan and cook the garlic and onions and cook over medium heat for 5-7 minutes or until soft.
Whisk in the flour and then add the vegetable broth, bay leaf, salt, and pepper. Cook over low-medium heat until mixture thickens (8-12 minutes). Add the frozen vegetables and cook for 5 additional minutes.
Roll out puff pastry and using the top of the casserole dish as a guide, cut out a circle. Lightly grease the 4-inch casserole dishes, discard the bay leaf and scoop in the vegetable mixture. Top with the puff pastry circle.
Place dishes on a baking sheet and cook for 15-17 minutes, or until the inside is bubbling. Let cool and enjoy!