Place a large non-stick skillet with 1 tablespoon olive oil and 1 tablespoon butter over medium heat. Add the broccoli and season to taste. Saute the broccoli until crisp-tender, 4-6 minutes. Remove sauteed broccoli from the pan and set aside.
Season shrimp with salt and pepper. In the same pan, add the remaining 2 tablespoons butter and add shrimp. Sauté shrimp 1-2 minutes on one side.
Add the minced garlic, paprika, Italian seasoning, and onion powder to the shrimp. Stir to combine and flip the shrimp to cook on the opposite side. Cook shrimp for 1 minute then add 1/4 cup vegetable stock and Sriracha. Allow the sauce to reduce for 1 minute, making sure not to overcook the shrimp.
Push the grilled shrimp on the side and add broccoli florets back to the pan. Stir broccoli to coat it into the sauce and squeeze half of a lemon over the top of the grilled shrimp and broccoli. Reheat for 1-2 minutes. Remove grilled shrimp and broccoli from heat, garnish with parsley, lemon slices, and red crushed chili pepper if you like.