Basically, a McGriddle is a breakfast sandwich with fluffy pancakes with little pockets of maple syrup baked in for the bun and your typical choice of bacon or sausage, eggs and cheese inside.
Prices will vary but around here it's $3.89 for breakfast combo with hash browns and coffee or $2.89 for a Bacon, Egg and Cheese McGriddle alone.
McDonald's Restaurant Locator
Nutritional Info - McDonald's Bacon, Egg & Cheese McGriddle - 6.3 oz (164g)
Calories - 420 (from Fat - 160)
Fat - 18g (Saturated Fat - 8g)
Sodium - 1110mg
Carbs - 48g (Sugar - 15g)
Protein - 15g