INGREDIENTS
4
zucchini, 5 to 6 inches long
2 tbsp
extra-virgin olive oil, divided
1/2 lb
ground Italian turkey sausage, casings removed
1/2 cup
finely chopped red onion
1
large red bell pepper, diced
1/2 tsp
kosher salt
1/4 tsp
black pepper
1/8 tsp
red pepper flakes
1 tsp
minced garlic
2 tbsp
tomato paste
1/4 cup
packed fresh basil leaves
2
slices whole wheat sandwich bread
1/2 cup
freshly grated Parmesan, plus additional for serving