Combine crushed garlic, olive oil, and poultry seasoning in small pan and heat 1 minute, until just warm.
Trim all visible fat and membranes from chicken breasts, then make small crosswise slits about 1/2 inch apart down the length of each chicken breast, being careful not to cut too far into the chicken. (This helps the garlic and herb flavor penetrate the chicken more.) Put chicken into zip loc bag, pour heated oil over, and marinate all day in refrigerator.
To cook, take chicken out of refrigerator and let it come to room temperature for a few minutes while you preheat oven to 425.
Mix bread crumbs and parmesan (pulse a few times in food processor if the mixture isn't fine enough.) Place cheese/breadcrumb mixture in flat dish and dip each chicken breast into it, pressing on as much of the coating as you can.
Place each chicken piece in casserole dish which has been sprayed with nonstick spray. or olive oil. Bake until chicken is firm and cooked through, about 25 minutes, then put under the broiler to brown more if desired. (Original directions said to bake 30-40 minutes, but I wouldn't cook it that long. Actual cooking time will depend on the thickness of your chicken breasts, but chicken should feel firm but not hard when it's cooked.)