Preheat oven to 375°F. In a large skillet over medium-high heat, heat olive oil until shimmering. Add onions, salt generously, and cook, stirring frequently until the onions begin to brown (about 10 minutes). Add garlic to skillet and cook until toasted (about 5 minutes). Add peppers and tomatoes and cook until they begin to soften (about 5 minutes). Add cumin, paprika, and Charleston Mix and cook until slightly reduced (about 10 minutes). Crack eggs into skillet and scatter along with the feta. Place in oven and bake until egg whites are set (about 5-7 minutes). Remove from oven, top with cilantro, and serve with warm bread.