Preheat oven to 350°F. Lightly spray a loaf pan with baking spray.

Place the strawberries on a baking sheet and roast for 25 minutes, then remove and set aside.

In a medium bowl, combine flour, baking soda, and salt with a wire whisk. Set aside.

In a large bowl, cream butter and sugar with an electric mixer.

Add egg whites, bananas, apple sauce, and vanilla, then beat at medium speed until thick. Scrape down sides of the bowl.

Add flour mixture and blend at low speed until combined, do not overmix.

Fold in roasted strawberries and pour batter into the prepared loaf pan; bake for about 50 minutes, or until a toothpick inserted in the center comes out clean.

Let the pan cool at least 20 minutes before slicing. Bread should be at room temperature before serving.