Preheat the oven to 350°F (180°C).
Peel, seed, and roughly chop the apples and zucchinis.
In a heavy-bottomed pan over medium-high heat, add the butter and allow it to melt. Continue to cook for another few minutes until the butter begins to brown.
Add the zucchini and apples to the butter. Mix well.
Add the rest of the filling ingredients to the pan and stir.
Cook the filling on medium heat for about 20 minutes, stirring frequently, until the apples and zucchinis are tender.
Meanwhile, make the topping by adding the pecans to a food processor and pulsing until crumbly. Add the rest of the topping ingredients and mix well.
Add the zucchini and apple mix to a large tart pan or smaller oven-safe ramekins.
Sprinkle the topping over the filling in an even layer.
Bake for 45 minutes until the top is golden and crispy and the apple/zucchini mixture is bubbling.