Preheat your oven to 375°F (190°C) and lightly grease the baking pan.

In a mixing bowl, combine the cherry pie filling, granulated sugar, cornstarch, lemon juice, and vanilla extract. Stir well.

In another bowl, mix flour, rolled oats, brown sugar, cinnamon, and salt. Add cold cubed butter, blending until coarse crumbs form.

Spread cherry filling evenly in the baking pan, then drizzle the crumble mixture over it.

Sprinkle crumble topping over the cherry filling, ensuring even coverage.

Bake in the preheated oven for 50-60 minutes, until the filling is bubbly and the topping is golden brown.

Let the crumble cool for about 10 minutes before serving.