I'm from the Bay Area, but if I forget my order number when I make whichever one... then I'll be very rile-y!
$$ \begin{array}{|c|} \hline \\ \bbox[purple]{\begin{array}{c}\\\quad\quad\huge\mathbb{Daily \ Specials}\quad\quad\\\\\end{array}} \\ \\ \begin{array}{ll} \large\star \ \textbf{Anti Italian} & \small\text{Hamburger, cheddar cheese, lettuce} \\ \large\star \ \textbf{Denver Nugget} & \small \text{Grass-fed beef, Weed from the Sea, Viper sauce} \\ \large\star \ \textbf{Deadly Gyro} & \small\text{Discolored lamb, bitter almonds, apple seeds} \\ \large\star \ \textbf{Urban Reuben} & \small\text{Roast beef, fresh cabbage, ten-grain bread} \\ \large\star \ \textbf{Puzzler's Slider} & \small\text{Smoked herring, Jigsaw Farms goat cheese, Nikoli secret sauce} \\\end{array} \\ \\ \bbox[gold]{\begin{array}{c}\\ \quad\quad\huge\mathbb{Create \ Your \ Own}\quad\quad\\ \\ \end{array}} \\ \tiny\textit{Choose from a wide variety of toppings, meats, and finishes!}\\ \begin{array}{l|l|l} \text{Aldehyde group} & \text{Famous constant} & \text{Recent} \\ \text{Artillery weapon} & \text{Formal dance} & \text{Robin Williams's daughter} \\ \text{"Back to Back," for instance (var.)} & \text{Fried potato item} & \text{Robot from the Axiom} \\ \text{Banner in the comics?} & \text{Ger. broadcasting group} & \text{Rolling in dough} \\ \text{Barren} & \text{Greens, colloquially} & \text{SE site, shortly} \\ \text{Bygone musical genre of the 1970s} & \text{"I } \heartsuit \text{" followers} & \text{Tallow} \\ \text{Common contraction} & \text{Kind of opportunity} & \text{Toilet, in America} \\ \text{Coughed up the ball, on stat sheets} & \text{Lad} & \text{Top pick, slangly} \\ \text{Course beginner?} & \text{Measure of economic growth, perhaps} & \text{Type of sauce} \\ \text{Crow that's racist?} & \text{Methodology} & \text{UFC sport} \\ \text{Direction on a compass} & \text{NBA indiv. statistics} & \text{Unix documentation command} \\ \text{Egyptian goddess of protection} & \text{Not provided (abbr.)} & \text{US Representative Schiff} \\ \text{Enoch, to Cain} & \text{Organization, briefly} & \text{UV preceders?} \\ \text{Equitable} & \text{Patriots, on scoreboards} & \text{Video game rip} \\ \text{Essential part of a map} & \text{Popular NBC sitcom} & \text{Wrestler Orton} \end{array} \\ \\ \hline \end{array} $$
Answer is a thematic phrase.
Text transcript of the menu items (for copy-paste purposes)
| Anti Italian | Hamburger, cheddar cheese, lettuce |
| Denver Nugget | Grass-fed beef, Weed from the Sea, Viper sauce |
| Deadly Gyro | Discolored lamb, bitter almonds, apple seeds |
| Urban Reuben | Roast beef, fresh cabbage, ten-grain bread |
| Puzzler's Slider | Smoked herring, Jigsaw Farms cheese, Nikoli sauce |
| Aldehyde group | Famous constant | Recent |
| Artillery weapon | Formal dance | Robin Williams's daughter |
| "Back to Back," for instance (var.) | Fried potato item | Robot from the Axiom |
| Banner in the comics? | Ger. broadcasting group | Rolling in dough |
| Barren | Greens, colloquially | SE site, shortly |
| Bygone musical genre of the 1970s | "I ♥" followers | Tallow |
| Common contraction | Kind of opportunity | Toilet, in America |
| Coughed up the ball, on stat sheets | Lad | Top pick, slangly |
| Course beginner? | Measure of economic growth, perhaps | Type of sauce |
| Crow that's racist? | Methodology | UFC sport |
| Direction on a compass | NBA indiv. statistics | Unix documentation command |
| Egyptian goddess of protection | Not provided (abbr.) | US Representative Schiff |
| Enoch, to Cain | Organization, briefly | UV preceders? |
| Equitable | Patriots, on scoreboards | Video game rip |
| Essential part of a map | Popular NBC sitcom | Wrestler Orton |
Hint 1 (minor spoiler):
The sandwiches you can create on your own come from a real-life shop clued by the title of this puzzle. It may also help to know that the puzzle creator is indeed from the Bay Area in California.