Dipping sauces for serving, such as honey mustard, ranch dressing and/or ketchup (optional)
Canola or avocado oil cooking spray
¼ tsp. kosher salt
4 cups 1-inch cauliflower florets
1 tsp. garlic powder
1 tsp. Dijon mustard
2 tbsp. water
2 large egg whites
⅓ cup pecans
3 oz. pretzel sticks (about 22), broken into pieces