In a medium mixing bowl, stir together the oats, almond meal/flour, sliced almonds, brown sugar and salt. Mix in the butter and yogurt. Stir until all of the flour is incorporated and the mixture is moistened throughout.
Preheat the oven to 350 degrees Fahrenheit. Rinse and drain the blueberries and pick through them to remove any stems still attached. In a 9 by 9-inch baking dish, mix together the blueberries, maple syrup or honey, arrowroot or cornstarch, lemon zest, lemon juice and cinnamon.