Heat a skillet over medium-high heat. Add cooking oil and then salmon to heated oil. Sear for 2 minutes.
Flip salmon over and sear for an additional 2 minutes. In the pan, add tomatoes around the salmon. Drizzle garlic oil over salmon and tomatoes. Cover pan with a lid or foil.
Reduce heat to low-medium. Continue cooking salmon, covered, until it flakes easily with a fork, 4 to 7 minutes (depending on thickness).
While salmon cooks, toss cucumbers with mint. Season with some salt and pepper.
Serve salmon with tomatoes spooned over top. Enjoy with cucumbers on the side.