For the chimichurri:
Combine the parsley, oregano, cilantro and garlic in a food processor and pulse until coarsely chopped. Add the paprika, vinegar, oil and salt and pepper, to taste, and process until smooth. Scrape into a bowl and let sit at room temperature for 30 minutes before serving.
The sauce can be made 8 hours in advance tightly covered and refrigerated. Bring to room temperature before serving.
For the steak and sausages:
Heat the grill to high. Brush the steak and sausages with oil and season with salt and pepper, to taste. Grill the steak until golden brown and slightly charred on both sides and cooked to medium-rare doneness, about 4 minutes per side. Grill the sausages until golden brown on both sides and just cooked though, about 15 minutes. Remove the steak and sausages from the grill to a cutting board and let rest for 10 minutes. Slice and reserve.
For the eggs:
Heat a large cast iron pan on top of the grill. Once the pan is hot add the butter and eggs and either fry or scramble. Remove the eggs to a serving platter and top with the chimichurri and sliced sausages. Arrange the steak around the eggs and serve with Garlic Toast.
For the garlic toast:
Heat the grill to high. Toast bread on both sides until lightly golden brown, about 20 seconds per side. Remove from grill, rub with the cut side of garlic and drizzle with olive oil.