Rub the sausages lightly with olive oil so the spices have something to cling to. Sprinkle on the paprika, garlic powder, and black pepper, then rub it
Toss your cut potatoes with olive oil, paprika, and salt in a large bowl until every piece is coated. Spread them out in a single layer on a baking sheet so they don't steam each other. Bake at 425°F, flipping halfway, until golden and crisp on the edges.
While the fries bake, chop your boiled eggs and halve the cherry tomatoes. Combine them in a bowl with mayonnaise, mustard, green onions, salt, and pepper. Stir gently so the eggs stay chunky instead of turning mushy.
Heat your grill pan or outdoor grill to medium-high heat. Place the seasoned sausages on and let them cook undisturbed for a few minutes per side. Turn them with tongs until every side has deep grill marks and they're heated through.
Arrange the grilled sausages on one side of the plate and the crispy fries on the other. Spoon the creamy egg salad in the center or in a small bowl alongside. Sprinkle chopped parsley over the top for a fresh, colorful finish.