I love avocado toast, and if you add an egg to it you have a full meal. Sometimes I use balsamic vinegar to flavor the avocado instead of the lemon juice. You can make the egg any way you like, but I like it best fried or poached.
Melt butter in a skillet over medium-low heat. Crack eggs into the skillet side by side and cook until eggs are white on the bottom layer and firm enough to flip, 2 to 3 minutes. Flip eggs, trying not to crack the yolk, and cook until egg reaches desired doneness, 2 to 5 minutes more.
Meanwhile, toast bread slices to desired doneness, 3 to 5 minutes.
Mash avocado in a bowl; stir in lemon juice, cayenne pepper, and sea salt. Spread avocado mixture onto toast. Top with fried egg and season with sea salt and pepper.
Per Serving: 321 calories; protein 11.9g; carbohydrates 20.8g; fat 22.9g; cholesterol 191.4mg; sodium 360.9mg.