Turn on the oven to 175°C (350°F).
Cut out the tortilla flowers with the flower cookie cutter.
Brush the top and bottom of the tortilla flowers with olive oil.
Bake until slightly golden (about 3-5 minutes).
Remove the tortilla flowers from the oven.
Let them cool.
Mix the eggs, cream, finely chopped red onion, cheddar, sea salt, and pepper.
Spoon the mixture on top of each tortilla flower till the bottom is covered.
Bake again until the egg is cooked (about 8 minutes).
Remove the egg tortilla bites and allow to cool.
Slice a grape tomato in the middle at a slant.
Cut each half in half.
Connect the two set of halves to make two hearts.
Top the tomato hearts onto the egg tortillas.
Arrange chopped chives as the stem.
Sprinkle with sea salt and pepper.
Serve.