Place peppers in a bowl, add the olive oil, and toss to coat.
Heat a grill pan or outdoor grill to high. When the grill is hot, place peppers on grill in a single layer. Grill uncovered, turning occasionally, until the peppers start to char and blister, about 6 to 8 minutes total.
Alternatively, on the stovetop heat 1 tbsp olive oil in a large heavy bottom or cast iron skillet over high heat until the oil is lightly smoking. Add the peppers in a single layer and cook without turning until they are blistered on the first side, about 30 seconds. Turn the peppers and shake the pan until peppers are well blistered on all sides and tender-crisp, about 2 minutes more.
Remove to a serving plate, sprinkle immediately with sea salt and serve.
Serving Size 2.8 oz/ 81 gr; Calories 64 ; Calories from Fat 43; Total Fat 4.8 gr (7%); Saturated Fat 0.7 gr (3%); Trans Fat 0 gr; Cholesterol 0 mg; Sodium 210 mg (8%); Total Carbohydrates 5 gr (2%); Fiber 3 gr (11%); Sugars 3 gr; Protein 1 gr (3%); Vitamin A 14%; Vitamin C 57%; Calcium 1%; Iron 4%.
* Percent Daily Values are based on 2000 calorie diet. Your Daily Values may be higher or lower depending on your caloric needs.