Combine oats, all purpose flour, brown sugar, sugar, cinnamon, and a pinch of salt in a medium bowl. Mix together with your hands and then add room temperature butter. Continue to mix together until butter is fully incorporated and crumbles begin to form. Place in the refrigerator.
Place strawberries, sugar, and lemon juice in a medium sized mixing bowl. Let it sit or 10 minutes, until you're ready to assemble to cake. This will be the strawberry filling.
In a large mixing bowl, combine flour, baking powder, nutmeg, and kosher salt. Whisk together and set aside.
Combine room temperature butter and sugar in the bowl of a stand mixer fitted with the paddle attachment. Cream together on medium speed for 3 minutes. Reduce to low speed and begin adding eggs, one at a time, ensuring each egg is fully incorporated prior to adding the next. Scrape down the sides of the bowl and add vanilla extract and continue to mix until all ingredients are mixed together.
Add half of the dry ingredients to the batter and mix together. Then add milk and the cream cheese, then the remainder of the flour mixture and mix until just combined.
Spray a 9-inch springform pan with nonstick baking spray. Add batter to the prepared pan. Place strawberries on top of the cake batter, remove as much of the excess juice as possible (you can use this later). Then remove crumb topping from the refrigerator and pour on top of strawberry layer. Bake for 1 hour and 30 minutes. Let the cake cool completely in the pan prior to cutting.
Optional: use any leftover juices from the strawberries to drizzle on top of the cake.