1Heat oven to 350°F. Lightly spray 11x7-inch (2-quart) glass baking dish with cooking spray.
2In large bowl, stir together Bisquick mix, oats, brown sugar, almonds, cinnamon and nutmeg. Cut in butter, using pastry blender (or pulling 2 table knives through ingredients in opposite directions), until mixture is crumbly and begins to stick together.
3In medium bowl, mix granulated sugar and flour. Add blueberries and lemon juice; toss to coat. Spoon blueberry mixture into baking dish. Top with oat mixture.
4Bake 50 minutes or until filling is bubbly and topping is golden brown. Serve warm.