If using bacon, crisp bacon up in a skillet, then set aside on paper towel. Wipe out pan, and re-use, heat 1 T oil over med high heat, and add onions, stir for 2-3 minutes.
Add sliced brussel sprouts and a generous pinch of salt and pepper. Lower heat to medium and stir frequently, until brussel sprouts are melting and tender, about 7 minutes. Crumble cooled bacon into the brussel sprouts, stirring to incorporate. Keep on very low heat while making eggs.
Poach ( or fry) eggs to desired done-ness. Divide brussel sprout hash among 3-4 bowls. Top with eggs. Sprinkle eggs with finishing salt, cracked pepper and aleppo pepper ( or chili flakes).