Preheat the oven to 450°F. Get out a large rimmed baking sheet. Set aside.
Place the cut roma tomatoes and yellow grape tomatoes into a large mixing bowl. Toss with the olive oil. Sprinkle with the salt, tossing again to evenly coat.
Using a slotted spoon or clean heads, transfer the tomatoes to a rimmed baking sheet, spreading out into a single layer.
Roast for 30-35 minutes or until they are browned and reduced.
Remove and use for any recipe that calls or roast tomatoes or simply spread onto bread.
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Notes
French Style- Instead of using traditionally Italian herbs and spices, try using French like mint, herbes de provence or tarragon.
Italian Style- Likely the most common, this can also lead to several variations. Consider roasting along with fresh herbs like basil, parsley, oregano, thyme or rosemary. If you are short on time, toss 1-2 teaspoons of dried Italian seasoning in the with olive oil.
Garlic- I never turn down roast garlic or garlic confit, so adding a few cloves or an entire head of garlic (or 5) to the roasting pan would be a welcome addition.
Hot, Hot, Hot!- Spicy tomatoes, actually let's call them fiery tomatoes, can work in dishes like fra diavolo or simply heaped on a wedge of focaccia. Add 1-2 teaspoons of crushed red pepper flakes or aleppo pepper to the olive oil prior to roasting.
Mediterranean Style- Mint, dill, fennel, marjoram and oregano are great for tomatoes headed towards a Mediterranean hummus platter or grilled dish entree.
Middle Eastern- Tomatoes are also quite popular in Middle Eastern cuisine. Toss them with 1 teaspoon of sumac to bring out these natural flavors and alter the color into an even brighter hue.
Curry- Yellow curry powder can be used for tomatoes intended to join a curry sauce.
Tomatoes and Peppers- Julienne slice several bell peppers, red, yellow, orange or green, and add them to the sheet pan for a delicious variety.
Infused Olive Oil- There are so many infused olive oils out there that can make a huge flavor impact. Consider using one for roasting or to drizzle after cooking.
Sweet- If you want your tomatoes to take on a sweet tone and not so much punchy acidity, consider add 1-2 teaspoons of sugar to the mix before roasting. It will heighten the natural sugars.
Lemony- Fresh lemon juice and lemon zest spritzed and grated right after removing from the oven will not only smell heavenly, but taste fresh and bright.