Ensure the tuna is well-drained to prevent a watery filling., Softened cream cheese ensures a creamy, lump-free filling texture., Whisk eggs with milk just enough to combine; over-whisking or adding too much milk can reduce fluffiness., Cook over medium heat to keep eggs tender and avoid browning or rubberiness., Use fresh herbs such as dill, chives, or parsley to add freshness., Nonstick skillet and flexible spatula help fold omelette without tearing., Leftovers store well in an airtight container in the refrigerator for up to 3 days; reheat gently to maintain texture., For vegetarian or egg-free versions, chickpea flour and mashed beans can substitute eggs and tuna respectively, with appropriate seasoning adjustments., Dairy-free options include plant-based milk, cheese, sour cream, and cream cheese alternatives.