Here’s a breakdown of the calories (obviously more exact measurements would yield a firmer number). I am not including cooking spray, which would have to be measured during cooking, or the garnishes (maple syrup/walnuts).

570 calories – 1 cup pancake mix (I used Bob Red Mill’s Organic 7 Grain Pancake Mix)
6 calories – 1/2 teaspoon ground nutmeg
6 calories – 1 teaspoon ground cinnamon
117 calories – 1 tablespoon coconut oil, melted and brought to room temperature
15 calories – 1/2 cup almond milk
78 calories (assuming large egg) 1 egg
12 calories – 1 teaspoon vanilla extract
20 calories – 1 small zucchini, Blade D, noodles trimmed

TOTAL: 824 calories

The recipe makes 6-8 pancakes. If 6, it would be 137 calories each. If 8, it would be 103 each.