Prepare mini phyllo dough shells on a baking sheet according to package directions, and set aside.
Preheat oven to 350 degrees.
In a large skillet, heat olive oil over medium high heat.
Add garlic and shallots, and saute just until they start softening, about 2 to 3 minutes.
Add mushrooms, herbs and spices, and continue cooking until mushrooms are soft and barely any liquid remains.
Stir in shredded cheese.
Remove mixture from heat.
Fill the phyllo dough shells (still on baking sheet) with mushroom mixture. Use about 1 heaping teaspoon in each cup.
Bake 5 minutes or until tarts are thoroughly hot.
Sprinkle with additional chopped herbs for garnish, if desired.
Serve immediately.