Make three more rows above the spinach: a row of carrots, then eggs, then bell pepper. Position the pieces end to end as necessary to create long, horizontal rows. Repeat the rows of spinach/onions/bacon, carrots, eggs, and bell pepper, leaving a 1-inch border of uncovered meat at the top.
Drizzle some of the chimichurri-drippings mixture over the stuffing, and then roll the steak from bottom to top into a compact roast.