Coat an 8x11 or 9x13 dish with cooking spray. Preheat oven to 350 degrees.
In a large mixing bowl, combine chicken through rubbed sage. Mix well.
Fold in French cut greens beans and caramelized onions. Spread mixture evenly into your dish.
Bake for 30 minutes. Remove and layer Swiss cheese over hot chicken mixture. Evenly distribute Grands biscuits quarters and return to oven for 10 minutes, or until tops are lightly browned.
Enjoy your French Onion Chicken Casserole!
If you've tried this recipe, come back and let me know how it was!
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Notes
If you have beef bouillon cubes, grind them with a mortar and pestle or the back of a spoon.