Heat 1 Tbsp olive oil in a large skillet over high heat. Add shrimp to skillet and cook shrimp until just opaque in center, stirring often, about 5 minutes. Transfer shrimp to a plate.
Add 1 Tbsp olive oil to skillet and saute onion until translucent. Add peppers and sausage, cover and cook for about 5 minutes, stirring occasionally. If necessary, add another Tbsp of olive oil if veggies are sticking to the skillet.
Add zucchini and minced garlic to the skillet and stir. Add tomato paste and chicken broth, and stir everything. Season with salt, freshly ground pepper and spices (1/2 tsp basil, 1/2 tsp thyme, 1/2 tsp oregano, 1/4 tsp red pepper flakes). Cook for another 5 - 7 minutes until the sauce is thickened and vegetables are tender.
Add shrimp and cook for another 3 minutes until the flavors are fully incorporated.